First there was an online assessment in which there were two sections, one was a technical assessment and the other included numerical ability, English, and behavioral questions. If you cleared the online assessment, then there was a technical interview. If you cleared it, then there was an HR interview. Then there was final selection.

I couldn't clear technical interview so I am writing the question which were asked in technical interview only

tell me about yourself?

asked about my family background?

what are different types of DC machine?

if you go to buy a transformer what specification you tell the seller?

you have 1000KVA transformer what will be the current?

you have 10 HP induction motor what will be the current ?

one thing to keep in mind that difficulty level could vary it depends on the interviewer and role they are interviewing you for so once check the linked in profile of interviewer if you get to know his name before interview.

Also whole process for me and my friends was online.