Can anyone provide me with drawings for surface modelling?

There are some good drawings in the SIMILAR QUESTIONS list on the right side of the screen.

Or you could take a real, physical part and try to model it yourself. Your mouse, a plastic bottle, a ball point pen are good examples. Just take your own measurements and try to model it. Take some design liberties and see if you can come up with a better shape.

well buddy try out the model mania's of Solid works in you tube there are pretty good designs over there hope this might help you bit