Long Term Capital Gain on Sale of Property/Buildingg

Dear Sir/Madam,

I was sold my property worth of 8Cr on 28-12-2022 and entered agreement for sale with advance of 2cr and Registration was done at 10th May 2023 and received balance full amount after TDS of 8L in FY 2023-24.

My Question is that, which year  should i file the long term capital gain ie FY 22-23 or 23-24.

Also bought the house worth of 2.5cr on 25-12-2021 should i set off the purchase against the sale consideration ?