I applied through a pool drive.
The interview consisted of 4 rounds.
1) Amcat based test(logical, verbal, computer programming & Quants)
2) Group Discussion
3) Technical Interview
4) Managerial Interview
Around 1500 students registered for the drive and about 200-300 got selected for the GD round and about 30 were selected in the end.
In the GD round make sure that you don't stutter and express your views in a clear and understandable way
For the technical interview main focus is on the Project, Data structures, a puzzle
For managerial interview be confident!