Yes, NRIs can invest in mutual funds through Coin if they have an NRI account with Zerodha.
Current limitations: If you are based in the USA or Canada, you currently cannot invest in any mutual fund schemes on Coin due to technical restrictions. However, this option will be available soon.
Only a limited number of Asset Management Companies (AMCs) allow US and Canada-based investors to invest in mutual funds, while the majority restrict such investments due to compliance requirements.