Can I do hair donation at Tirumala on a different day without darshan?

I’m currently in Tirupati and had a ₹300 Sheeghra darshan today near ATC circle, but I skipped hair donation because I didn’t have time to bathe after the tonsure.

Now I’m planning to go to Tirumala tomorrow just for hair donation at Kalyanakatta, take a bath there, and then return to my stay without doing darshan again.

Is this allowed? Has anyone done this before?