New Delhi, Nov. 8 -- The Gurugram traffic police have issued 753 challans worth Rs 75.30 lakh for 'modified silencer', mostly by Royal Enfield Bullet motorcycles and pressure horns during the past 10 months from January 1 this year till October 31, officials said on Wednesday.

'Silencer Blast', technically an offence called 'Silencer making noise' under Sections 120 of Central Motor Vehicle Rules and 190(2) of the Motor Vehicles Act, is usually performed by switching the engine off and suddenly on again when the motorcycle is at a high speed. A sound like that of a firecracker is produced.

It is usually done in very heavy-engine motorcycles like the Bullet.

Deputy Commissioner of Police (traffic) Virender Vij said a special campaign was ...