Hello Harshita

As far as organic chemistry is concerned, O P Tandon is widely used and recommended to students. It is considered a must have for all those candidates who are preparing for competitive exams as they contain all the detailed information about each topic and that also from the scratch.

But I'm telling all this regarding Organic chemistry. M S Chauhan is another good book for Organic chemistry.

You can refer to P Bahadur or R C mukherjee for Physical Chemistry.

Since I had not opted for biology, I can not tell you the same regarding that.

Hello Harshita,

Personally I would not recommend OP Tandon for chemistry. Most of the content is factually incorrect. For physical chemistry refer, I would  refer modern approach to chemical equations by rc Mukherjee and would suggest reading Morisson and Boyd, arihant, cengage and resonance books for organic and inorganic chemistry.

For biology you can take up Arihant NEET books.

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