Linking Aadhaar to Mutual Funds

I have been receiving an email from all Mutual Fund companies to link my portfolio with Aadhar before 31st December.
Since I am investing via Coin, is it enough to link my Zerodha account with Aadhaar or do I need to individually link to all the AMC which would really be a pain?

Linking Aadhaar to your Zerodha Demat will suffice. Explained why here.