Bajaj Pulsar 180 — Air passes through front tyre

Address:

Hyderabad, Andhra Pradesh

I bought Bajaj Pulsar 180 from Abhinandan Bajaj, Tolichowki. After 2 months of purchase, I found that air is leaking from the front tyre. When I checked it for puncture, there were no punctures as such. When i went to showrrom, they gave me a letter and asked to go to Eurogrip factory in L.B.Nagar.What i want is , i didn't buy tyres directly from Eurogrip, they(bajaj) bought it. So they should get it rectified for me.
Now how I can force them to rectify my problem.Please suggest.