I applied through college or university. The process took 1 day. I interviewed at NCDEX (Mumbai) in Mar 2013
Interview
On Campus interview. Aptitude test given by over 60 students. Basic math and english. Shortlisted to 10 candidates. Interview was the same day. One round only taken by CIO & VP of HR. Asked about resume and basic behavioral questions. Friendly, relaxed. Be honest and know your resume well. Results of interview was given same day.