You can follow these simple steps:
1. On the home page, click on "Investment" (bottom of the screen, at the center).
2. Click on "Import MF's" under Quick Actions (center of the screen).
3. Enter the email ID with which your external (external to Niyo) mutual funds are linked. The system will help you generate a consolidated account statement, that will consist of details (including transactions) for all your investments. This statement will come to your email ID.
4. Forward that email to cas@mf.goniyo.com
Once you forward it, within a few minutes, your external funds will start reflecting here :)
The steps may seem lengthy but it's actually quite easy, and the app will guide you at each step, so you don't need to remember it all.