Hero Motocorp — Bike engine is getting off while pushing Ist and IInd gear

Address:

401, OKHLA VILLAGE JAMIA NAGAR, 20, TULIP APARTMENT

When the Ist gear is put on the bike gets off. Most of the time bike engine getting off during IInd gear.
The problem could not be resolved after two many efforts even by resetting through computer system by the authorized service center in Abul Fazal Enclave, New Delhi-110025.
I am very much fed-up with this problem. I am regretting to purchasing this bike.