I applied through a staffing agency. The process took 1 week. I interviewed at WNS (Chennai) in Jan 2020
Interview
7 rounds
English test
Quantitative round
Aptitude round
Technical round
Phone interview
HR interview
Managerial round
Overall it was a good experience. Out of 100 , 6 were selected based on their performance in the above mentioned rounds. HR was very friendly and maintained a cool environment.