I had locked my Aadhaar and now when I try to unlock it says "You are either trying to lock a locked UID or unlock an unlocked UID". Couldn't find much on the internet other than this Reddit thread. The last option is to go to a center - an update would take 15 days probably but hoping to find a quicker way. Has anyone faced this before? Would appreciate it if you could guide me, thanks.

Try the mAadhar app. I remember it had some extra options for locking/unlocking biometrics (I forget the details).

That too isn't allowing me to log in because UID is locked.

Hmmm, no idea. Also do a search on twitter. Occasionally, might find a useful thread....

Yes, I did that but didn't find anything other than a few complaints. I am actually pretty surprised that very few people even tried locking it.