From July 1 ,2022 a fee of Rs. 1000 will charged if you want to link Aadhaar to PAN
If you link your PAN to your Aadhaar on or before June 30, 2022, you will be charged Rs 500.
If PAN to Aadhaar link is not done by March 31, 2023, then next year starting April 1, 2023, your PAN will become inoperative.
In that case, you will not be able to file income tax return, open a bank account, invest in mutual funds
You can check your PAN to Aadhaar linking status at official income tax website
PAN-Aadhaar was implemented with intention reduce tax evasions
If the government gets more revenue, it will be helpful to development and other useful projects which will benefit the people.