HDFC Bank — mirevenue hold through gefu

Money has been hold by hdfc bank and it is showing as the mirevenue hold through gefu held by hdfc bank, can i know the reason for what the money has been held by bank.
Account holder name: tadaka surya teja
Date of the incident-31 july 2020
Saving account number:[protected]
Request a refund.
Money held by bank 556