@xulfiqar
Sir there is another problem I'm facing, time to time, the front wheels get jammed..... first happened left and now on my way back to Lahore, the right one. The cylinder is stuck open. It needs to be pushed back by opening the caliper itself and then pushing it back, also have to open up the bleed nosal, which needs another session of making brake.
There is a small cylinder missing which connects at the back of the brake pedal and on its place, there is a bolt tightened. I'm unable to find that "killi" or cylinder as you say, and I'm f'ed up due to this issue. Please suggest some thing about that. I am pretty sure, it is just because of that.