1st round : Apti + Technical(Programs in this carries more and predominant concentration for selection. 2nd round :Only If many people are there 3rd round : Face to face technical. You need to be disciplined to get selected. Informal dress is okay but.

1st round : Technical(Most priority is given for selection) + Aptitude(Least priority) 2nd round : GD if many people are there on the day of drive 3rd round : Face to face