Power of attorney in Son in law name

A father-in-law in the USA granted a Power of Attorney (GPA) to his son-in-law, who then sold a property on his behalf. The issue is that the AIS report incorrectly shows the son-in-law as the seller. The recommended solution involves filing feedback in the AIS report to declare the father-in-law's PAN and subsequently filing the father-in-law's Income Tax Return (ITR) to account for the capital gains.