LUCKNOW, May 13 -- Uttar Pradesh transport officials seized vehicles and issued challans as part of a statewide crackdown on vehicles fitted with modified silencers and pressure horns, following strict directions from the high court.

During the campaign on Tuesday in Lucknow, challans were issued to nine motorcycles fitted with high-decibel silencers, while 13 vehicles were seized for violating norms. Officials also warned 20 shopkeepers and service centre operators against selling or installing such devices.

The enforcement drive was led by Lucknow ARTO (enforcement) Alok Kumar Yadav. Teams conducted inspections in several areas, including Amausi, Alambagh, Badshah Nagar, PGI, Lalbagh and Qaiserbagh.

The transport department said stri...