Hello Arsalam Murtaza,

You can find the download option for Ebooks of various competition examinations including SSC and CSIR NET in the following link :- 

https://competition.careers360.com/download/ebooks

Wish you all the best and happy new year, 

Hey

Careers360 provides various ebooks for you to prepare for UPSC, Bank PO, NDA, CDS, SSC, CTET, TET Exams and others. Download them free and improve your preparation strategies
https://competition.careers360.com/download/ebooks 

All the best!