Hi Neha,

Here is the list of books that will be helpful in preparation for the DRDO CEPTAM Exam:-

• DRDO: CEPTAM Technician 'A' (Tech 'A') Tier-I Exam Guide by R. Gupta
• DRDO: CEPTAM Recruitment Exam Guide 2018 Edition by R. Gupta
• Master Reasoning Book by K.K. Singh
• English for General Competitions by Neetu Singh

You may refer to this article for more information about DRDO CEPTAM.

I hope this information helps you.

Good Luck!