Hello,

Due to pandemic crisis, it may or may not be open. You can go in weekend and check it out. as per your board,There is prescribed book for every subject.

Mostly NCERT is followed because it is as simple as it can be made. With NCERT , you can follow other reference books for more understanding and problem solving.

You can get soft copy of NCERT book from many private sites and even from NCERT official site. They also provide solution and explanation for excersises also.

Hope it helps!