Interbank mobile payment service (IMPS) has been launched by banks to transfer funds within the same bank and other banks on an immediate basis. There is no maximum limit set for such transactions. You can transfer up to 5 lakh easily. However RBI has directed banks to set their own limits.
The
charges for IMPS are similar to NEFT. The benefit of IMPS is that it can be even executed even on a holiday and thus it is better than NEFT and RTGS.
You can check about
Bank of India IMPS here.