Hello student practice is the only key to command over mathematics and physics so practice as much as possible so that you can Learn and solve conceptual problems easily.

Prefer NCERT to build your basic concept and make sure you do each and every example and exercise questions of Ncert before jumping to a reference book after completing ncert thoroughly refer to your coaching material or any reference book as mentioned below -

1)concept of Physics HC VERMA

2)Rd Sharma Mathematics

3)Arihant practice book for jee main

Subscribe to careers360 knockout package - https://learn.careers360.com/knockout-jee-main-april/

Feel free to comment if you have any doubt

Good luck