I applied in-person. The process took 5 months. I interviewed at CFlo (Calcutta) in Oct 2019
Interview
Submit the cv at office reception, they will call you for interviews when the appropriate post will available for you as per your cv. There are 2-3 round of interviews and after the selection company will provide you a training.
Interview questions [1]
Question 1
Pump related and basic mechanical knowledge and work experience related