(need help) UPI wrong account transfer

• A complaint shall be first raised with the relevant TPAP in respect to all UPI related grievances / complaints of the end-user customers on-boarded by the PSP Bank / TPAP (if the UPI transaction is made through TPAP app). In case the complaint / grievance remains unresolved, the next level for escalation will be the PSP Bank, followed by the bank (where the end-user customer maintains its account) and NPCI, in the same order. After exercising these options, the end-user customer can approach the Banking Ombudsman and / or the Ombudsman for Digital Complaints, as the case may be.
  
  https://www.npci.org.in/what-we-do/upi/dispute-...

They won't do anything unless the other party asks them to send it back. 30 days time period is just to make you forget or forego the amount. I transferred to one DD member by mistake and he never gave my money back. Complaint was useless. Bank manager also couldn't do anything about it. 

For any new number always transfer a token amount. Also cross check the name of receiver

I'm also interested in knowing how long these kind of cases take to resolve.

If the amount in the credited account is frozen, why does it take so long to refund it back to the sender?

No use, I transferred to wrong Id from Bajaj, raised chargeback request. They raised the complaint and after 30 days came back as, the other bank is saying the other person is not reachable so the request of chargeback is rejected . Now have raised the complaint to RBI. Let's see if anything happens but chances are very slim.

If transferred using upi then try to contact him. Still he is denying to refund your money, register a cyber complaint against him.

Raise concern with RBI.