@Pavanchirmade - Bugger, u had to pick my name eh
Good list of ideas for newbies man.
A few more pointers,
* Any freeflow exhaust does not work. So avoid non-tuned pipes. You'll only get slower.
* Avoid these cheap spark wires, coils etc coz they are not meant to work with your engine. Stock works best unless you know what you are doing.
* Overboring an engine does not give you more power at peak. Its a different ball game altogether. Leave it stock.
* Changing the carb size without knowing what flow your engine demands, is another way of going slower.
* I've some electric chinese gizmos being sold. Electric turbo and what not. How I wish tuning was indeed that easy
* Going for tyres which are of higher profile than stock does not necessarily increase grip levels. Do the right homework.