Whether padhuka is sufficient ?????????

it is more than enough to get good marks.. i too following the same book....

ya good book

Also do problems given in Practice Manuals along with Padhuka. Those are sufficient. Give importance to theory also.

refer any book...but don't neglect Practice Manuals... these days practice manual are key to score good marks...

Padhuka is a lengthy book.. if you refer it make sure that you don't compromise with any other subject's time... each one is equally important.

Do solve compilation and suggested question of previos years.

Practice enough so that in exam you take the least time to solve the problems.

Timely completion of paper is most important.