I applied online. The process took 2 months. I interviewed at Virtela Technology Services (Mumbai) in May 2013
Interview
You will have minimum 4 rounds of interview here.
Interview panel is pure technical, don't fake any answers as they have worked on most of the technologies and prodcucts.
Make sure you know the concepts and basics of the products very well, else you wont be able to crack an interview.
Interview questions [1]
Question 1
All technical question of Firewall , URL Filter, routing technologies.