TDS payment using Form 26QB when buying property on loan

Hi,

I have bought a property on loan recently. Total value of property Rs. 1 cr. Out of this I have paid 10% till now and the rest will be paid by the bank based on stages.

I am expected to pay TDS on this.

Firstly, do I have the option to pay the entire TDS as lumpsum even though I have not paid total cost now?

Secondly, I am buying the property along with another co-buyer in a 50-50 arrangement. While filling the value in the portal, do I have to enter the value as half in the column for amount paid currently & stamp duty? And what about the column for total consideration?

Regards,

Confused