there were 3 rounds
1)30 technical apti+5 electronics +25 logical verbal quant apti and all to be done in 60 minutes
also wright answer carries 1 marks and wrong -0.25
2)interview(everything u mentioned in your CV like subject of interest and software known and hobbies along with some puzzle and some hr questions)
3)hr round(formal but be careful,as they will only check your ability to speak and confidence)
at last i will say be prepared with your projects you have done and be confident ,that is the key to your success in interview