crash course  is just waste of time

 

how can u expect them to teach   yuear portion in just 20 days???????????

 

also  when u buy a book  make sure that they contain  the solutions also  otherwise its difficult for an average student  like in hcv they provide only answers not solutions

 

i would preffer TMH IITJEE(PHY/CHEM/MATHS)

or ARIHANT OBJECTIVE

these are really good and also provides complete solutions