There is good amount of challenging process, with many interview rounds. And after clearing many challenges, after then only you get a opportunity. Its not that easy to get in such a esteemed organisation. I would not like to reveal the entire process or challenges, because then there would be no joy in that, because its the place for those who love to face challenges and go smoothly in that. And challenges are always a secret! All the HR personals are so humble, and helpful and the ambience of interview is also great. It will give you a feel of being inside a company. Starting from security personals, housekeeping staffs till the interview panels all are great!