Hello student there's no official notification released by the authorities yet. As of now Neet entrance examination is scheduled on August 1,2021. And it's expected that it'll not postponed further as the condition of corona virus is in control and the situation is better.

Please don't believe in any rumor until any official notification released.

For regular updates on Neet entrance examination refer to the link mentioned below - https://www.google.com/amp/s/medicine.careers360.com/articles/neet/amp

Neet eligibility - Candidates must passed or appearing class 12 in physics chemistry and biology with minimum 50 percent marks from a recognized board.

Feel free to comment if you've any doubt

Good luck