Hero Motocorp — engine compliant

Address:	Krishna, Andhra Pradesh, 520004
Website:	heromotorcrop.cpm

Hello sir iam owning an hero glamour bike, i have bought it feb 2017, ever since i bought it white smoke is comming from silencer, when i give it for servicing they are saying that dont worry smoke will get reduced after few more services but now my bike has stopped in the middle of the driving.
Ever since i know iam using only hero bikes as it is reputated company but i regret it now.
Please rectify my problem as soon as possible