First of all, a written examination is conducted to filter the applicants. It consists of Quantitative Aptitude and General English. The applicants clearing this phase, become eligible for interview. It basically contains a HR interview, based on your resume, NO technical question is being asked. For example, they might focus on any of your extra curricular activity or hobby and get into details of that. So be prepared whatever you write in your resume. 95% of the candidates getting selected after written examination, also clear HR interview..!!