Income Tax Department — Refund of excess tax deposit for assessment year 20-21

AADPB3670Q, an excess of 2, 50, 000 Rs was deposited by mistake for assessment year 20-21. The same is reflected in AS26 also. Total tax deposited was 8, 65, 510while assessed tax was 6, 15, 510.
Requests have been made at various income tax sites including request for rectification and in writing to the concerned ITO.
No refund has been received so far.
Vinay Bhasin