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Noise rules in Delhi: the limits, who enforces them, and how to complain

Delhi follows India's national noise rules: 55 dB(A) by day and 45 at night in homes, night being 10 p.m. to 6 a.m. Delhi adds 100-metre silence zones around courts, government office complexes, large educational institutions and hospitals, and bars generator sets above 5 KVA in residential areas at night. Complaints go to the police on 112 or through the Green Delhi App.

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The limits

The decibel limits are national, set in the Schedule to the Rules; National Capital Territory of Delhi's job is to classify each locality into one of the four zones and to enforce them. The full text, the night restrictions and the complaint rules are on the India noise rules page.

Ambient noise standards, Schedule to the Rules (limits in dB(A) Leq)
Area codeCategory of area/zoneDay timeNight time
(A) Industrial area 75 70
(B) Commercial area 65 55
(C) Residential area 55 45
(D) Silence Zone 50 40

Who enforces the rules in Delhi

By a notification of the Department of Environment, Government of NCT of Delhi, dated 14 May 2025 (published in the Delhi Gazette Extraordinary, SG-DL-E-19052025-263213, 15 May 2025), the Lieutenant Governor designated seven classes of officers as the 'authority' under Rule 2 of the Noise Pollution (Regulation and Control) Rules, 2000: all Deputy Commissioners (Revenue); all Sub Divisional Magistrates (Revenue); Assistant Commissioners of Police, Control Room; all Sub Divisional Police Officers including Railways and Airports; named senior engineering and scientific grades of the Delhi Pollution Control Committee; Assistant Commissioners of Police (Traffic); and Assistant Commissioners of Municipal/Local bodies of Delhi. It supersedes the 2001 and 2008 designations. The Environment Department also lists a corrigendum to this notification dated 18 August 2025, which we could not read; it may change the list.

"the Lieutenant Governor of the National Capital Territory of Delhi is pleased to designate the following officers as the “authority” for the maintenance of the ambient air quality standards in respect of noise under any law for the time being in force in the National Capital Territory of Delhi: (i) All Deputy Commissioners (Revenue), Govt. of N.C.T. of Delhi . (ii) All Sub Divisional Magistrates (Revenue), Govt. of N.C.T. of Delhi. (iii) Asstt. Commissioners of Police Control Room. (iv) All Sub Divisional Police Officers including Railways & Airports. (v) Additional Director (Engineering), Additional Director (Scientist ‘E’), Senior Environmental Engineers, Scientist- D and Scientist- C of Delhi Pollution Control Committee. (vi) Assistant Commissioners of Police (Traffic). (vii) Assistant Commissioners of Municipal/ Local bodies of Delhi."

Source: egazette.gov.in

How to complain about noise in Delhi

Under Rule 7 a complaint can be made when noise exceeds the zone limit by 10 dB(A) or more, or when a night-time restriction is broken. A reading from the free online decibel meter, taken with A-weighting over a full minute and noted with the time, helps describe the problem. It is an uncalibrated estimate of about ±10 dB, not evidence on its own; the authority measures with a calibrated instrument.

Local orders in Delhi

Designated authorities and their action points (NGT-ordered noise control order)

Issued after the National Green Tribunal's 14.07.2022 order in OA 519/2016 (Hardeep Singh v. SDMC). It assigns duties to each designated authority. Deputy Commissioners are responsible for the sound limiter notification, under which no audio or public address system may be let out or installed without a sound limiter. SDMs handle noise from DG sets, cooling towers, ACs and compressors in commercial areas, construction equipment (including marble and tile cutting) and firecrackers. Police ACPs (Control Room) and SDPOs handle loudspeaker restrictions and permissions, and take an undertaking from organisers before permitting loudspeakers. DPCC's Chairman and Member Secretary handle industrial-area equipment noise and real-time monitoring, and ACPs (Traffic) handle horns, modified silencers and silence/no-honking zones. Complaints are to be resolved within 2 hours, and DPCC's compensation scale of 25.06.2021 is to be applied. The order's list of authorities predates the 14 May 2025 designation: it names DPCC's Chairman and Member Secretary (the 2025 notification names DPCC engineering and scientific grades instead) and lists the Assistant Commissioners of municipal/local bodies only as 'proposed'.

"In Delhi, the installation of Sound limiters in sound systems is mandatory. To act upon these directions and implemented in social functions. To take undertaking from the organizer as a pre-condition for permitting playing loudspeakers."

Source: Department of Environment, GNCTD, Order F No. 10(30)/Env/2016/7057-7066, 2022-11-29.

Silence zones: 100 metres around large schools, courts, government office complexes and 100-bed hospitals

Under Rule 3(5), the Lieutenant Governor declared four kinds of area as Silence Areas/Zones in the NCT of Delhi: 100 metres around educational institutions with more than 1,000 students, around all courts, around all Government office complexes, and around hospitals with 100 or more beds. This partly modified an earlier notification of 21 May 2004.

"1. An area of 100 meters around all Educational Institutions having more than one thousand students; 2. An area of 100 meters around all Courts; 3. An area of 100 meters around all Government Office Complexes; 4. An area of 100 meters around all 100-bedded and above hospitals."

Source: Government of NCT of Delhi (Department of Environment) Notification F.12(1)N.P/Env/2005/32, 2008-04-03.

Diesel generator sets above 5 KVA barred at night in residential areas

A Lieutenant Governor's order under Section 5 of the Environment (Protection) Act, 1986 bars generator sets above 5 KVA from running in residential areas between 10 p.m. and 6 a.m. It requires acoustic enclosures on generator sets above 5 KVA in residential, commercial and industrial areas, and on mobile generator sets used at social gatherings and public functions. The Environment Department's noise page summarises the rule with an exception for group housing societies that the order itself does not state.

"that generator sets above the capacity of 5 KVA shall not be operated in residential areas between the hours of 10.00 pm to 6.00 a.m;"

Source: Order of the Lt. Governor, Delhi (Vijai Kapoor) regarding DG sets, 2001-12.

Silence zones

Delhi's 2008 notification declares as silence zones the area of 100 metres around educational institutions with more than 1,000 students, all courts, all Government office complexes, and hospitals with 100 or more beds. The Environment Department's noise page repeats this, though it words the school threshold as '1000 students or more' and the courts item as 'all court complexes'. No official count or map of individual zones was found.

"Government of Delhi has notified an area of 100 meters, around the hospitals with 100 beds or more, educational institutions with 1000 students or more, all court complexes, all Govt. Office complexes as Silence Areas/Zones."

Source: environment.delhi.gov.in

How loud Delhi measures

DPCC runs a real-time ambient noise monitoring network. Its website lists noise levels at 31 locations, while the Environment Department's page says 26. In DPCC's Diwali 2023 assessment, real-time monitoring at 31 locations on Diwali Day (12 Nov 2023) ranged from 53.7 dB(A) at Najafgarh to 84.5 dB(A) at Karol Bagh. Before Diwali (06 Nov 2023) the range was 44.9 dB(A) at Najafgarh to 74.7 dB(A) at Karol Bagh. The report does not state the averaging period in that passage.

Source: dpcc.delhigovt.nic.in

What is the noise limit in Delhi at night?

In a residential area, 45 dB(A) Leq from 10 p.m. to 6 a.m., and 55 dB(A) by day, under the national Schedule that applies in Delhi. Silence zones are held to 40 at night and 50 by day, commercial areas to 55 and 65, and industrial areas to 70 and 75.

How do I complain about noise in Delhi?

Call 112, the Delhi Police emergency number, or use the Green Delhi App, which the Delhi Pollution Control Committee points the public to for pollution complaints. A Delhi Environment Department order of 29 November 2022 lists both among the channels for noise complaints and sets a target of two hours for the designated authority to resolve them.

Are loudspeakers and DJs allowed at night in Delhi?

Not in the open between 10 p.m. and 6 a.m. under the national Rules, which allow them at night only in closed premises such as auditoria and banquet halls. Loudspeakers need written permission. Delhi's 2022 order makes sound limiters mandatory on sound systems and has the police take an undertaking from organisers before permitting loudspeakers.

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Read from official sources on 2026-10-01: the documents linked beside each statement, and the national Rules as published by the Central Pollution Control Board at cpcb.gov.in. A plain-language summary, not legal advice; the Rules, state notifications and court orders control.