Isca

Watch his Demo lactures on youtube and decide yourself..  He has no expert knowledge of the subject. He never speak on subject and concepts in the class. No explanation of any topic. But he will entertain you... (shouting, singing, acting - it instead give the impression of wasting time and beating around the bush) Unless and untill you study yourself you cant score good marks in ISCA. 

Thanx Rahul. I am in doubt about ISCA whether it can be done through self study or we needs classes for it.

It can be done only by self study.. All study tips are given in Manish Valecha ISCA Textbook.

Thanx CA vikas jindal.