Devyani International — Amount blocked even after Mandate period is over

Address:

H no 314 wheelarganj , B K road, Near vidyapati high school, Laheriasarai ,Darbhanga.

Sir, I Have applied for IPO of Devyani International but i didn't get allotment But my amount of 14850 is still blocked even after Mandate period (21 august) is over, Please look into int and do unblock the amount as early as possible.
Details:
Name- Sunil Kumar singh.
Application No-GROWW5087065.
Account details:
Name- Mayank Raj.
Account no-[protected]
Ifsc code-UBIN0558796
Bank-UNION BANK OF INDIA