Today is 20th not 29th, so only 3 days have passed since the auction end.
Anyways no problem happened here, there was no bid after the auction's end time.
If there had been a bid after the auction end, I would have given the domain to the rightful winner, this was purely an error, I didn't intentionally keep the auction running after its end time.
I'll keep a close eye on the auction's end time in the future to avoid any issues.
Thanks.