@kunal_kothari Please find my answers in line with your query below:
Do the mutual fund investments sit in Demat account or non-Demat?
Niyo Money does not support investments in mutual fund folios in DEMAT format. All new investments purchased through Niyo Money will be in a REMAT format.
Can I choose to have different folio numbers on the same fund for investments on different days?
Yes, this can be done in Niyo Money. For this, you will need to set up multiple goals and purchase the same scheme in each of them. This way each of the purchased schemes would be allotted a different folio number.
Is the nominee the same as NiyoX/Equitas savings account? Does the nominee need to be updated if the savings account is closed?
No, it is not mandatory that the name of the nominee will be the same in the NiyoX savings and your invested MF folios.
It can vary depending on the details you would have updated during signing up for NiyoX app.
Once the nominee details are updated in your MF folios, you do not need to update them again even if your savings account closes unless you are planning to change the nominee name on the folio.
How does redemption of mutual fund investments happen? If the savings account is closed, how does redemption happen? A new bank account has to be updated in Niyo Money?
Redemption requests can be placed directly from the Niyo Money app. Once placed the redemption gets processed in up to 2, 3, or 5 working days for liquid, debt, or equity fund respectively.
If the bank account that is registered to your folio is closed, you will need to get the new bank details updated prior to placing the redemption request.
This can be done from the service request section of your Niyo Money account. You will need to share with us the canceled cheque for both the new and old bank accounts and our team will then follow up with the MF company to get the new details updated.
Once the new details are updated you can then place the redemption request and the redemption should be credited to your new bank account.
Hope we have answered your queries. For any further help on investments, write to us at investments@goniyo.com
Stay safe 
Regards,