The buyer deducts. The seller on this page is a resident
Section 393(1), table serial 3(i), as the tax year 2026-27 note sets it out: any person who is the transferee, paying a resident transferor for immovable property other than agricultural land, deducts the tax. The note excludes the person in table serial 3(iii). That serial, on the rates table, is compensation on acquisition of certain immovable property, at 10%.
Immovable property, in the same note, means any land other than agricultural land, or any building or part of a building.
Deduct at the earlier of two times. One is the credit of the sum to the transferor's account. The other is the payment, in cash, by cheque, by draft, or in any other way.
There is no requirement to apply for a TAN. The Form 141 FAQ says you file with the deductor's PAN.
Table serial 3(ii) on the rates page is a different payment: monetary consideration under a joint development agreement, at 10%. This page does not walk through that row.