The company hires by Walk ins in the Delhi office , it goes to campuses and HR offices of small towns as well and conducts interviews.The interview process consists of 4 rounds of which 3 rounds are mandatory to get qualified whereas the fourth round assess your technical expertise. The first round is a regular aptitude check usually 20 questions, second round is the telephonic interview which is the grandest part and the most difficult part of the interview process and after which the third and fourth round remains just a cakewalk. The third round is the personal interview and the personal interaction with the HR. The fourth round is the technical round which probably helps them assess your level of expertise in technical terms and helps them allocate the process. You are then given an offer letter and offerd a salary based on your qualification. After this a regular medical checkup at one of the apollo clinics ensures your hiring. It may then be up to you to accept or decline.