The interview started with the aptitude round.They will give you enough time for completion with simpe questions.(the only thing is you have to do it faster).Second round consist of a technical written round.they will give you two questions of programming type(any language).write the two codes and wait for the interview.At the interview,they will first check the basic knowledge (C,C++,NEWTWORKS,DATA STRUCTURE,DATABASEPYTHON,etc).I got eliminated at this round.I dont know whether they hav the fourth HR round.