How US NRI can invest in India via mutual funds?

First, the couple will need to get their KYC (physical) done if they have not got it done already or have not updated their NRI status in it.

from Wealth-Economic Times https://economictimes.indiatimes.com/wealth/invest/how-us-nri-can-invest-in-india-via-mutual-funds/articleshow/84541942.cms