Tip 1 : CDAC asks from computer science core subjects so prepare the core subjects well from youtube
Tip 2 : During interview they will have your resume printed on paper in their hand, and they ask line by line whatever you have written in it so please don't try to mention anything false, otherwise you will face the rejection.
Tip 3 : They expects a good B.Tech project so prepare your projects well and explain your contributions well.
Tip 1 : Mention your B.Tech project on your resume. That is must and they want that thing. They will question you over that project in detail.
Tip 2 : Because they ask each and every thing you have mentioned on your resume so dont write anything false.
Interview happened at 2:30 pm. It was online interview. There were 5 members taking the interview with my resume in printed form in their hand. They were asking everything from my projects and core CSE subjects. They were expecting a proper answer hence please prepare your subjects and project well.
They asked me CPU scheduling and various algorithms of it. What is process and thread. What is difference between multicore and multiprocessor.
Tip 1 : Study OS from youtube channel like gate samshers.
Tip 2 : Prepare short notes of the subject which will help you to revise.
He asked me ACID properties, primary and foreign keys, normalisation, and basics of file handling. He also asked me very simple SQL queries and some commands like what they mean and where to use them.
Tip 1 : Revise all the common SQL commands
Tip 2 : I will suggest gate smashers youtube channel for preparing DBMS and please make short notes while studying the subjects.

Here's your problem of the day
Solving this problem will increase your chance to get selected in this company
What is recursion?