I applied through college or university. The process took 2 days. I interviewed at WNS-Vuram in Sep 2017
Interview
It consist of 2 rounds.First round is aptitude and 2 simple programs. It's not an online test.Aptitude is very easy.I cleared first round.Second round is Interview.Most of the questions from c,c++ and few from area of interest ,SQl and few puzzles followed by HR Interview.
Interview questions [1]
Question 1
program based on bit manipulations and pattern printing.