IBM

Telephonic and online test, then face to face in IBM office. Simple questions were asked.

The interview process was very quick. I had two technical video call interviews, which were finished in 7 days, followed by an HR round. Later, they took 4 to 5 days to release the offer letter.

The interviewer seemed inexperienced and wanted bookish answers only. It was not too difficult, but I recommend reading through streams and DS algorithms for round 2. You should be prepared to give bookish answers here. They want the final solution