Hello aspirant you can use 

1) Er Dushyant Kumar , BTech IIT Roorkee 

2) Anytime Padhai

3) Etoos Education

Organic chemistry .... Most important thing is understanding the chapter BASIC PRINCIPLES AND REACTION MECHANISM.... All the rest of the chapters become cakewalk after this chapter is mastered..for this  you need loads of practice so an extra book (MTG).. And no point repeating but learn NCERT.

There is a good news for you..

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