The written test is arranged by e-litmus, for which you might find sample questions on the internet.

There were 60 questions in 2 hours and 30 minutes (20 Quant, 20 Logical, 20 English). Quant was very tough, equal to CAT level. So, even attempting 5 correctly will qualify you for the next round. I would suggest starting with Logical, then English, then Quant.

Before this e-litmus test, there was a technical objective test with 20 questions in 30 minutes, which was fairly simple (general questions on OS, C program output, etc.).

Interviews: They were mainly checking your design capabilities. They asked me to design classes for Minesweeper and to write code for checking malicious code in email.

All the best!

Design classes for Minesweeper.