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Environmental Law Guide

Highway Projects and Environmental Clearance: Residents' Rights

Does a highway need environmental clearance? What residents and villages can do about EC, public hearings, trees, dust, noise and drainage along a new road.

Written by the environmental law practice of Advocate BK Singh, which acts before the pollution boards, environment authorities and the National Green Tribunal.

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Last reviewed: October 2026

New national highways need prior environmental clearance (EC) from the MoEFCC, and new state highways need EC at the state level. Many widening projects do not, because expansion of an existing highway needs EC only above the length and extra land thresholds in the EIA Notification 2006. Even where no EC is needed, the project still needs permission to cut trees, forest clearance for any forest land, and consents for its hot mix plants and crushers, and it must control dust, noise and drainage. Residents can use each of those points.

Short answer: Check whether the highway needed an EC under the EIA Notification 2006 schedule. If it did, residents can object at the public hearing, appeal the EC in the NGT within 30 days, and complain when conditions are broken. If it did not, tree, forest, consent, noise and drainage rules still apply and can be enforced through the authorities and the NGT.

This guide is for villagers, farmers, colony residents and RWAs who live along a new or widened highway, whether it is a national highway being built by NHAI or a state highway being built by the PWD or a state road corporation. It separates what is an environmental issue, which the authorities and the NGT can deal with, from land acquisition and compensation, which follow a different law. For the general route to challenge a clearance, see our page on challenging an environmental clearance in the NGT.

Highway projects are public infrastructure, and the tribunal is slow to stop them outright. That shapes what works: precise objections, enforceable conditions and specific relief on trees, drainage, noise and dust usually achieve more than a demand to cancel the road.

New national highwayCategory A: EC from the MoEFCC
New state highwayCategory B: EC at state level
WideningEC only above length and land thresholds
Appeal against EC30 days under NGT Act s.16, plus up to 60 days
Pollution during worksState Board, under Air and Water Acts
Land compensationSeparate process under highway law, not the NGT

हिंदी में सारांश

नया राष्ट्रीय राजमार्ग बनाने के लिए MoEFCC से पहले पर्यावरण मंजूरी (EC) चाहिए, और नए राज्य राजमार्ग के लिए राज्य स्तर पर। पुराने राजमार्ग के चौड़ीकरण में EC तभी चाहिए जब लंबाई और अतिरिक्त जमीन तय सीमा से ज्यादा हो। जहां EC नहीं चाहिए, वहां भी पेड़ काटने की अनुमति, वन भूमि के लिए वन मंजूरी, हॉट मिक्स प्लांट और क्रशर के लिए प्रदूषण बोर्ड की सहमति जरूरी है, और धूल, शोर व पानी की निकासी के नियम लागू होते हैं। निवासी जन सुनवाई में आपत्ति कर सकते हैं, EC के खिलाफ 30 दिन में NGT में अपील कर सकते हैं, और शर्तें टूटने पर शिकायत कर सकते हैं। जमीन के मुआवजे का विवाद अलग कानून के तहत चलता है, NGT में नहीं।

In short

The essentials

Not every road needs EC

New national and state highways do; many widenings fall below the thresholds and do not.

The public hearing is your first chance

Objections recorded at the hearing go into the minutes the expert committee reads.

Thirty days to appeal

An appeal against a highway EC must reach the NGT within 30 days of communication, extendable by 60.

Trees need separate permission

Tree felling permission, and forest clearance for forest land, apply whether or not there is an EC.

Plants need consent

Hot mix plants, crushers and batching plants serving the road need consent from the State Board.

Drainage is a real ground

An embankment that floods a village is an environmental and nuisance issue the authorities must address.

The first question

Does a highway project need environmental clearance?

Some do and many do not. The EIA Notification 2006 lists highways in its schedule. New national highways are category A and need prior EC from the MoEFCC after appraisal by its expert committee. Expansion of an existing national highway needs EC only when it crosses thresholds based on the length of the stretch and the additional right of way or land being acquired. New state highways are category B, and some state highway expansions in hilly terrain or ecologically sensitive areas are also covered.

These thresholds have been amended over the years, and there are special provisions for certain strategic and border roads. Do not rely on a figure you read in a news report or a WhatsApp forward. Look at the current schedule, and better still, ask the project authority or the MoEFCC whether an EC was obtained. An RTI to NHAI or the state PWD asking for the EC, or a letter saying none was required and why, settles the point within 30 days.

Many four-laning and six-laning projects on existing alignments proceed without an EC because they are under the thresholds. That does not mean they are free of environmental law. They still need permission for every tree cut, forest clearance for any forest land, consents for their plants, and compliance with dust, noise and waste rules. Most of the practical relief residents get comes from these other permissions, not from the EC.

What applies when

Permissions a highway project may need

A highway is a bundle of permissions, each with its own authority. Knowing which ones apply tells you where to complain.

IssuePermission or ruleAuthority
The road itselfEC, if above the schedule thresholdsMoEFCC (national), SEIAA (state)
Forest land in the alignmentForest clearance under the Van (Sanrakshan Evam Samvardhan) AdhiniyamState forest department and MoEFCC
Roadside treesTree felling permission and compensatory planting under state tree lawTree officer or forest department
Hot mix, crusher and batching plantsConsent to establish and operateState Pollution Control Board
Dust from works and haul roadsAir Act, C&D Waste Rules, dust control normsState Board, and CAQM in Delhi NCR
Noise from works and trafficNoise Pollution (Regulation and Control) Rules 2000DM, police, State Board
Drains, culverts and water bodiesEC conditions where applicable; Water Act; nuisance lawProject authority, DM, State Board
Protected areas and eco-sensitive zonesWildlife clearance and ESZ rulesForest and wildlife authorities, MoEFCC
Before approval

What rights do residents have before a highway is cleared?

For a highway that needs EC, the main right is the public consultation. Category A projects, and many category B projects, must hold a public hearing in the district, organised by the State Board, after the draft EIA report and its summary are made available. For a linear project like a highway, hearings are usually held in each district the road passes through. Some expansions within existing land are exempt from the hearing, so check whether yours was.

Use the hearing well. Read the executive summary of the EIA report before the date, and come with specific points: the village pond the alignment cuts through, the school that will be within metres of the carriageway, the natural drain the embankment will block, the grove of old trees the report does not mention. Ask for your objection to be recorded in the minutes, and send a written copy to the State Board and the MoEFCC so it is on the file even if the minutes are thin. Our guide on objections at an EIA public hearing explains how to make them count.

Advocate B.K. Singh's usual advice to villages along a new alignment is to put drainage, access and water source objections in writing at this stage, with a simple sketch map, because the expert committee can turn a well-made objection into a condition (a culvert at a named point, a noise barrier near a school, a service road) far more easily than the NGT can redesign the road later.

After approval

Can residents challenge the environmental clearance for a highway?

Yes. An order granting EC can be appealed to the NGT under section 16 of the NGT Act within 30 days of communication, with up to 60 more days if there is sufficient cause. For residents, "communication" is usually taken from when the EC was put in the public domain, through the newspaper advertisement or publication of the letter, so watch for it. Once that window closes, an appeal against the grant becomes very difficult.

The grounds that work are concrete. The EIA report left out a river, wetland or forest patch in the alignment. The baseline data was copied from another project. The public hearing was not held, or held without proper notice, or the minutes do not reflect what was said. The project was split into short stretches to keep each one under the threshold. Our guide on mistakes in an EIA report deals with how such errors are proved.

Be realistic about the result. The tribunal rarely quashes a highway EC entirely. More often it sends the matter back for fresh consideration of a specific issue, adds conditions, or directs measures such as wildlife crossings, noise barriers or drainage works. If work is about to begin on something irreversible, such as felling a large number of trees, an interim application can be made; see our guide on interim relief and stay in the NGT.

Trees and forest

Trees and forest land along the highway

Tree cutting is where most residents first notice a highway. Every tree in the right of way needs felling permission under the state's tree law or forest rules, usually with a condition of compensatory planting, often at several times the number felled. Ask the tree officer or the forest department, through RTI if needed, for the permission, the number and species of trees allowed, and the location and status of the compensatory plantation. Gaps between the permission and what is actually felled are common.

Forest land raises the stakes. If the alignment passes through reserved or protected forest, or through land that counts as forest in the dictionary sense under the Supreme Court's reasoning in T.N. Godavarman Thirumulpad v Union of India, the project needs forest clearance before work starts. In some states, roadside strip plantations are themselves notified as forest, which means widening the road needs forest clearance even where no one thinks of the area as a forest. Approvals under section 2 of the forest law can be appealed to the NGT under section 16.

Our guide on tree cutting for a road project deals with whether felling can be stopped and what conditions are realistic to ask for, and our page on forest clearance covers the approval process.

During construction

Dust, plants and night work: problems during construction

Construction is often worse for residents than the finished road. Contractors set up hot mix plants, stone crushers and concrete batching plants near the alignment, often on rented farmland close to villages, and run them round the clock. Each needs consent from the State Board, and each is subject to state siting norms on distance from habitation, schools and water bodies, so check your state's current siting rules. Our guide on hot mix and asphalt plant pollution covers complaints against these plants specifically.

Dust from haul roads, uncovered earth and debris is covered by the Air Act, the Construction and Demolition Waste Management Rules and, where the project has an EC, its conditions on water sprinkling and covering of material. In Delhi NCR, the dust control measures under GRAP also apply to road works. Borrow pits dug for embankment earth are another frequent issue: left unfilled, they collect water and become a drowning risk for children and cattle.

Night work brings noise. The Noise Rules set ambient limits of 55 dB(A) by day and 45 dB(A) by night in residential areas, and residents can complain to the DM, the police and the State Board when machinery runs through the night near homes. Contractors sometimes have permission for night work in specific stretches, so ask for it before assuming it is illegal.

Step by step

What residents can do about a highway project, step by step

The order matters. Each step creates a record that the next one relies on.

1

Find out what was approved

File RTIs to NHAI or the PWD and to the MoEFCC or SEIAA asking for the EC, or confirmation that none was needed, with the alignment drawings and the tree felling and forest permissions.

2

Map the impact

Mark on a simple map the homes, school, water sources, drains, trees and fields affected. Photograph each point with dates.

3

Object or comment in writing

Before approval, object at the public hearing and in writing. After approval, write to the project director with copies to the DM and the State Board, listing specific problems and specific fixes.

4

Complain about plants and dust

For hot mix plants, crushers and dust, complain to the State Board with photos and the plant's location, and ask for its consent status.

5

Track the conditions

If there is an EC, compare its conditions with what is happening and complain to the MoEFCC regional office or SEIAA when they are broken.

6

Act within time

If the EC itself is flawed, appeal to the NGT within 30 days. For continuing pollution or breach of conditions, apply under section 14 within six months.

7

Keep land issues separate

Pursue compensation and acquisition objections in the forum the highway law provides, not in the environmental case.

After the road opens

Noise and drainage problems once the highway is running

Traffic noise from a busy highway near homes, schools and hospitals is a long-term harm. Where the EC required noise barriers or a green buffer near sensitive receptors, those are enforceable conditions. Where there was no EC, residents can still ask the project authority and the State Board to measure ambient noise and compare it with the limits for the zone. Silence zones cover at least 100 metres around hospitals, educational institutions and courts, with limits of 50 dB(A) by day and 40 dB(A) by night. Our page on noise pollution complaints covers the authorities.

Drainage is the problem villages complain about most after a highway is built. A raised embankment acts like a dam across natural slopes and drains, and without enough culverts, water collects on one side every monsoon, flooding fields and homes. This is a real environmental and public nuisance issue. Write to the project director with photos from the monsoon, ask for a survey of cross drainage, and copy the DM. If nothing is done, the SDM's power to remove a public nuisance under section 152 of the BNSS and an NGT application are both available. Our guide on encroachment blocking a natural drain deals with similar cases.

Who does what

Who to approach for which highway problem

ProblemFirst approachIf no action
No EC where one seems neededMoEFCC or SEIAA, with RTI to project authorityNGT application
EC wrongly grantedAppeal is the only routeNGT appeal within 30 days
EC conditions brokenMoEFCC regional office or SEIAA, State BoardNGT application under s.14
Trees felled without permissionTree officer, forest department, policeNGT, or High Court for non-Schedule laws
Hot mix plant or crusher pollutionState BoardNGT application
Night noise from worksPolice, DMState Board, then NGT
Waterlogging from embankmentProject director, DMSDM under BNSS s.152, NGT
Land compensation amountCompetent authority for land acquisitionArbitration under the highway law
Honest limits

What the NGT will not do in a highway case

The tribunal does not decide land acquisition, compensation for land or the choice between two alignments on engineering or cost grounds. Disputes about the amount of land compensation under the National Highways Act go through the competent authority and arbitration that the Act provides. Objections to the acquisition itself must be filed within the short window stated in the acquisition notification. Missing that deadline cannot be fixed by an environmental case.

Nor will the tribunal stop a public road because residents would prefer it elsewhere. It will act where there is a substantial environmental question: a missing or flawed EC, illegal tree felling, forest land diverted without approval, a polluting plant without consent, a drain blocked so that a village floods. Framing the case around those questions, with evidence, is what separates the applications that get orders from those dismissed at the first hearing.

Illustration

A widened highway and a flooded village

Here's a made-up example. A state highway in a plains district is widened to four lanes on its existing alignment. The project is below the EC threshold, so there is no EC. The contractor sets up a hot mix plant on leased farmland a short walk from a village school and fells a few hundred roadside trees. The embankment is raised, and the next monsoon, water stands in the village for weeks because the old culvert was closed.

The village sarpanch files RTIs and learns that the tree permission covered fewer trees than were felled and that the hot mix plant has no consent from the State Board. The villagers complain to the board, the tree officer and the DM, with photographs, the RTI replies and a map. The board inspects, finds the plant running without consent and issues a closure direction. The tree officer starts proceedings for the excess felling.

The drainage problem remains. The villagers apply to the NGT, which asks a joint committee of the State Board, the DM and the PWD to inspect. On the committee's report, the tribunal directs the PWD to build cross drainage at stated points before the next monsoon and to complete the compensatory plantation. The road is not stopped, but the village gets what it actually needed.

Evidence

What to collect for a highway complaint

From the authorities

  • EC letter, or written confirmation that none was required
  • EIA report summary and public hearing minutes, if any
  • Tree felling and forest clearance permissions
  • Consent status of hot mix plants and crushers

From the ground

  • Dated photos of tree felling, dust, plants and flooding
  • A sketch map marking homes, school, water sources and drains
  • A log of night work with dates and times
  • Statements from affected residents, signed and dated
What goes wrong

Mistakes residents make in highway cases

  • Missing the 30-day appeal window. Residents often learn about the EC months later, when trees start falling. Watch for the newspaper notice.
  • Assuming no EC means no rules. Tree, forest, consent, noise and drainage rules apply to every highway project.
  • Asking the NGT to move the road. Alignment choice is rarely a ground the tribunal accepts. Specific environmental fixes are.
  • Mixing compensation into the environmental case. Land compensation has its own forum, and including it weakens the environmental application.
  • Complaining only to the contractor. The contractor answers to the project authority. Write to the project director, the DM and the State Board.
Quick checks

Before you take action on a highway project

  • Do you know whether the project has an EC, or why it did not need one?
  • Has the 30-day appeal period against the EC started or passed?
  • Do you have the tree felling and forest permissions?
  • Do the hot mix plants and crushers have consent from the State Board?
  • Have you mapped the drains, water sources and sensitive buildings affected?
  • Have you kept land compensation issues separate?
Related reading

Related guides

If the project has an EC but is ignoring it, see our guide on what to do when EC conditions are not followed. When you are ready to approach the tribunal, how to file a case in the NGT explains the practical steps.

FAQs

Frequently Asked Questions

Does highway widening need environmental clearance?

Only if it crosses the length and additional land thresholds in the EIA Notification 2006 schedule. Many widenings on existing alignments do not need EC, but still need tree, forest and consent permissions.

Who grants environmental clearance for a national highway?

New national highways are category A projects, so the EC comes from the MoEFCC after appraisal by its expert committee.

Is a public hearing held for highway projects?

Yes, for highways that need EC, usually in each district the road passes through. Some expansions within existing land are exempt, so check the current notification.

How long do I have to challenge a highway EC in the NGT?

Thirty days from communication under section 16 of the NGT Act, with up to 60 more days for sufficient cause.

Can the NGT stop a highway project?

It rarely stops public infrastructure outright. It more often directs fixes such as drainage, noise barriers, wildlife crossings or compensatory plantation.

Can trees be cut for a highway without permission?

No. Felling needs permission under state tree law or forest rules, and forest land needs forest clearance, whether or not the road has an EC.

Where do I complain about a hot mix plant set up for road work?

To the State Pollution Control Board, which must have given the plant consent to establish and operate. Ask for its consent status and inspection.

Our village floods since the highway embankment was raised. What can we do?

Write to the project director and the DM with monsoon photos and ask for cross drainage. If nothing happens, the SDM can act on a public nuisance and the NGT can direct drainage works.

Can the NGT increase land compensation for highway acquisition?

No. Compensation disputes go through the competent authority and the arbitration process under the highway law.

What noise limits apply near a highway in a residential area?

The Noise Rules set 55 dB(A) by day and 45 dB(A) by night for residential areas, and lower limits in silence zones near hospitals, schools and courts.

Can residents ask for a noise barrier on a highway?

Yes. Ask at the public hearing so it becomes an EC condition, or later ask the project authority and State Board to measure noise and act.

BK

About the author

Advocate B.K. Singh, Founder & Principal Advocate, MCA, LL.B., LL.M.

Advocate B.K. Singh has practised for more than twenty years before the Supreme Court, the High Courts and the National Green Tribunal, and leads the environmental practice from offices in Dwarka (New Delhi) and Vaishali (Ghaziabad) with Advocate Sadhna Singh. Read his profile.

Highway project affecting your village or colony?

Send us the project name, the stretch, and photos or RTI replies you have on WhatsApp or by phone. We will tell you which permissions to check and whether the issue is one the authorities or the NGT can fix.

This page gives general information about environmental law as it stood when it was last reviewed. It is not legal advice on your case and does not promise any result. Laws, rules, fees and time limits change, so check the current position for your matter before acting.

Have a question about your own case?

A guide can only go so far. Send us the notice, the order or a few photos, and we'll tell you where you stand, which authority or NGT bench deals with it and when the next step is due, in plain words.

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