I have applied in August 2020, I got my first assessment round OA1 in February 2021, I completed 7/7 test in given time. I received email for OA2 in one hour after completing OA1. I passed all the test cases in both question in OA2. I finished OA2 in around 30 minutes. Then I got email for OA3 which is work simulation round I completed it 1.5 hour instead of 4 hours. I received rejection mail 2 days after. I don't know what was the criteria for selecting or rejecting any candidate.

OA followed by a technical phone screen round. Was later invited to the final stage which was a 3round interview loop of 3h. each interview was 30min technical and 30min behavioural