I applied online. The process took 2 days. I interviewed at Druva (Pune) in Sept 2017
Interview
There was online test of C and Data structure. I cracked it and next level, they asked me about Linux internals and some c code. The next interviewer asked about Lin list merg sort and other data structure questions
Interview questions [1]
Question 1
1. Merge Sort
2. How two processes on the same system can access the file using lock