Hello,

You can collect e-books from the official webpage of NCERT @ http://ncert.nic.in/ebooks.html

http://ncert.nic.in/textbook/textbook.htm

There are other private sites who also provide NCERT books and solution chapter wise. You can look out for them.

You can use Careers360 knockout July. it will be very helpful to you. it provides good assistance and help to clear your doubt in time. It provides mock test series to check your performance. It also provides previous year question papers which you can solve and if you get any doubt you can ask to your assigned mentor.

Here is the link :- https://learn.careers360.com/knockout-jee-main-april/

Hope it helps!

Hello student if you've not the book of Ncertb there's no problem you can download it in online format from the government portal of NCERT and continue your studies without any delay.

Refer to the link mentioned below - https://ncertbooks.ncert.gov.in/login

Feel free to comment if you have any doubt

Good luck