Since Neet 2021 has been scheduled on 12th September 2021, it can be expected that Neet 2021 results can be out by October and the counselling process and admission will be over by December 2021.
So start of 1st professional Mbbs Academic year for 2021 Neet batch will be from January 2022, so the next batch of Neet 2022 will not start earlier than September 2022 , so that there can be a minimum 9–10 month gap between the 2 consecutive batches.