As per the press release from SEBI dated 3rd September 2021, Clients are mandated to link their Permanent Account Number (PAN) with their Aadhaar Number on or before 31st March 2022. Otherwise, your trading account will be suspended, and you'll not be able to trade or invest, including exiting any open positions from 1st April 2022.
If you're yet to link them, visit here and complete the procedure in 5 minutes.
It might take up to 10 days for your PAN-Aadhaar seeding to be updated in the Income Tax records, and you can check the status here.
For more details, refer to this circular.
Note: Fyers will not be responsible for any losses incurred on the open positions due to not completing the said procedure.