There were 2 rounds. The first was a technical round in which I had to write 2 complete articles on separate topics. The 2nd round was a F2F where I met the HR manager and had an interview. The HR was supportive and warm. The questions were to the point and I had no trouble. I was selected after these 2 rounds.

It is lengthy and consists of three rounds. There is a Machine test, technical round, and HR round one must qualify to get a job in Das Wring Services in Kolkata