TDS on purchase of flat

Hi,

I bought a new flat and agreement is already done with the owner. The agreement is in name of me and my wife both. Now at time of paying 1% TDS, does that has to be paid by only 1 person under his PAN number or by both the owners as 50%-50% under both our PANs. The first owner on the agreement is my wife.

Regards,
Sandesh