1% tds on sale of property above 50l with multiple buyers &

Hi,

 I have purchased a resale residentail property

 The total agreement value is 75L
 Out of which 30L is to be paid by bank loan
 & 45L to be been paid by me.  
 Have paid 4425000 to seller as  1% tds (75K) needs to be deposited to government

 THere are 2 buyers & 2 sellers

So my question is

  1) will there be 4 forms of 26QB ? ..
            1 st buyer - 1 st seller
            1 st buyer - 2 st seller                           
            2nd buyer - 1 st seller   
            2nd buyer - 2 st seller  
    
  2)   for each buyer -seller combination what will be the total amount paid ? loan value included?

             1 st buyer - 1 st seller    1875000      TDS amount 18750
             1 st buyer - 2 st seller    1875000      TDS amount 18750
             2nd buyer - 1 st seller     1875000      TDS amount 18750
             2nd buyer - 2 st seller     1875000      TDS amount 18750

is this correct

 3) Also by when post agreement execution should the TDS be deposited to government.

thanks in advance