I had a very bad experience with castrol bike zone in neredmet, hyderabad. I gave my bike 3 times with the problem with handle and they have not given a permanent fix. But everytime they charged me huge. Even the normal servicing was not done properly.
Just after a month after servicing, my bike starts to give problems like - chain getting loose, engine making sounds. I have now stopped giving my bike there. Advice everyone not to service your bike in this shop. Its just not about wasting your money but also spoiling your bike.