One Diam247 page says deposits can be made by using UPI, IMPS, or web banking
https://wiki-nest.win/index.php/How_to_Register_a_Diam247_ID_Safely_and_Quickly
One Diam247 web page says deposits can be made utilising UPI, IMPS, or internet banking, and it states that the minimum deposit volume is ₹a hundred.