[Resolved]  Yamaha R15 — Bike stops suddenly while driving, does not start again...

I bought a Yamaha r15 on 20th June, 2008 here in hyderabad. The bike was running fine till recently when suddenly one day while driving, it stops in the middle. I tried re-starting, it starts, but as soon as i accelerate, it stop again. I took it to the service center with great difficulty. They said it was an issue in the fuel pump. They kept the bike for 3 weeks and said they had replaced the fuel pump. I got it bike and again after about 2 weeks, the same problem re-appears. This time i was stuck late night and had no clue what to do. The response from the service center has been appalling. They again say it is a fuel pump issue.
Is this a major bike defect? Is the engineering team aware of this issue? Can someone take a look as soon as possible?
My contact number is [protected]. Lokesh Kumar.

Thanks,
Lokesh