One Diam247 page says deposits shall be made because of UPI, IMPS, or net banking
https://romeo-wiki.win/index.php/How_to_Register_a_Diam247_ID_Safely_and_Quickly
One Diam247 web page says deposits will also be made by means of UPI, IMPS, or web banking, and it states that the minimum deposit amount is ₹a hundred.