There is an aptitude round, link is sent online followed by 2 rounds of telephonic interview. 1 is technical and another is interview with the VP. Prepare for puzzles and guesstimates.

I applied online at Optiontown. Round 1 - Telephonic Round with HR. Starts with the introduction, what technologies you know, what projects you made this round is pretty simple. Round 2 - Aptitude Test-- I got a mail for the aptitude test. Round 3- Final interview