RAJ KUMAR OR MANOJ BATRA

It is 100% true, Mr. Rajkumar adopts a casual approach and do not discuss recent case laws, practical questions in class, ST and VAT are also a issue there, considering technical questions. 

( Let you know, I have not taken classes from manoj batra yet).

But, I have to say only one thing, Make idol use of your money, after taking coaching, there is no point in doing homework and explore some new topics by yourself, Rather as if Go for Self study Instead.