Hi Amith,

Op Tandon and MS Chauhan are the good and the best books of organic chemistry for different competitive exams like NEET. But in NEET exam the  NCERT books are are said to be the most useful and best books for each and every topic and subject. NEET exam the NCERT books are the useful books as it is easy to know the points on your fingertips from the NCERT books.

I hope your question has been answered properly.

All the best for your future!