Why am I not able to log in to the AMC website to check my investments using the mobile no./email registered with Zerodha Coin?
Since your investments are in DEMAT form, with CDSL, you will not be able to manage or track your portfolio on the AMC website. You'll have to do so using the Coin platform.
You can check your mutual fund investments on the CDSL DEMAT holding statements, which will be sent to you periodically and which you can download yourself using CDSLeasi.
For your ELSS investments, you will be able to download the same from the Coin Platform. Click here to know how.