@caiceali
How old are you my friend? Bigger bikes operate almost in the same way as do small bikes, except for gear shifts and of course the control factor. By "TRAINING" I think you want to learn knee dragging since you are talking about riding it on track. I have never heard of any racing track in Pakistan, and on common roads even the basic thought of speed cornering is next to committing suicide, watch for the pit holes, a broken down rickshaw on the side and stuff like that.
Long story short, if you are really interested in this stuff, apply for foreign visa.