Yes, an NRI can give a Power of Attorney (POA) to another person in India to handle the sale of their property. The POA should clearly specify the authority being granted, such as signing the sale agreement, executing the sale deed, receiving consideration where legally permitted, and completing registration formalities.
If the POA is executed outside India, it generally needs to comply with the applicable authentication, stamping, and registration requirements in India. The exact procedure can vary depending on the country where it is executed and the state in which the property is located.
The NRI should use a specific POA for the particular property and transaction rather than granting unnecessarily broad powers. Before proceeding, it is advisable to have the document reviewed by a property lawyer and confirm the applicable requirements with the concerned Sub-Registrar.