"In last 20-30 days, you should only use the CFA Institute Practice Materials" @tanishka3338 

1 thing I want to add is for commerce graduates in india CFA seems tough bcoz they haven't seen the rigour of other exams like IIT JEE...for engineering graduates after going through IIT ,CFA exams are piece of cake .....there is NO CHALLENGE for IIT grads... Telling this from my experience