Dear student,

Let me guess, that you are asking for B.Tech books for 1st year for the Physics and Mathematics subject. So I have listed some top books for each subject below.

Engineering Mathematics :

• Higher Engineering mathematics by BS Grewal
• Mathematics by NP Bali

Engineering physics :

• Physics by David J Griffiths
• Engineering physics by Neeraj Mehta
• Physics by DK Bhattacharya

Hope this helps.