I applied through college where They sent me a mail you saying there will be an aptitude test but when you reach there its actually a technical test with 10 questions so stay aware of this, i prepared for maths aptitude ended up writing programs for which i was not even prepared, Candidates are only requested to write the respective functions and not the whole program the good thing is that they give you plenty of time to write programs one can think and apply logic easily with the time that is provided I think they should explain the whole process before calling candidates for any kind of tests