I applied through a recruiter. The process took 1 day. I interviewed at HCL (Chennai) in Dec 2015
Interview
2 technical round and 1 hr round ..
If you clear 2 technical that is final.. hr round is just salary discussion.. but once you join. Again they will do some kind of mentoring process.. there they will give some topic to learn and then they will review..
Interview questions [1]
Question 1
Basic c and Linux concept and data structure.. pointers string bitwise operation etc