Hello,
Every Company has a different process in every institute. If infosys is Day1 company , then there will be only two rounds, i.e aptitude and HR.
Aptitude is easy but they have sectional cut off so that is a negative point. You have to score min 60 % in all the modules i.e quants, logic & verbal.
HR round depends on Interviewer..Sometimes they only ask you non technical questions & sometimes they grill you on technical part.