two stages were there
1)written exam
2)personal interview.

60% in 10th &12th
60% B.E.

tell me about urself?
what is ur favourite subject?
why u want to join patni computers?
what r the major challenges that u have crossed through?
how u think u r suitable 4 this company.justify?

make ur aptitude level above avg and have faith in god.

approx 200 students applied of which 40 got selected.

good communication skill and confidence level.