Phone Screening ,followed by hackerearth assessment,post that there are 3 rounds initial 2 are dealing with Data Structure, Algorithms and Language and frameworks ,3rd round is System Design round, then there is hiring manager round followed by Director round.

it went for nearly 1.5 to 2months , with totally 4 rounds excluding the OA. starting with screening OA round , 1 coding round, 1HLD, 1 hackerrank api coding, 1HM round.