there are two stages 1st stage written test and second was personal interview.

criteria in my college was
10th &12 th 60%
graduation 65%

tell me about yourself?
u told that ur hobby is listning music who is ur favourite singer?
tell me why u want to join infy?
how do u handle stress and pressure?
what type of activity u have done in ur college and how?
any event organozes by u in the college?

for getting into software field u should have good communication skill and grip on apti.

265 students finally selected out of 500 students who were elligible for this test.
communication skill and communisation skill..