Hi shree niketh. First of all I would like to say that. The interest and comfort of reading varies from person to person. Obviously there are many good books in market. I ll tell you what I felt interesting and good when I did my 12 th.

Physics - concepts of physics by HC Verma

I loved the books because all the concepts were fluid , detailed and interesting.  I never got bored and I loved understanding physics and application is very good. The examples cited and the way it's explained are crisp and neat. But the downside is you won't have a lot of questions to solve on. But if you wanna be solid at concepts. This is a good book to supplement with your NCERT text books

Chemistry - Grb chemistry by OP tandon

This book covers all the topics in a detailed manner. Useful especially for entrance exams. And you have a lot to solve in this as well. There may be some errors here and there just like most of the books. But it's good to read and solve. It gives everything in a detailed manner.

Maths - RS Aggarwal and ML Khanna.

It is a very good book with great collection of problems. I felt it useful and the questions are good.

For board exams ncert is enough...