• TDS on property with NRI

I intend to buy the owner share e-katha BDA approved plot developed by a developer.
The land 4 acres was originally bought by the mother in 1975. And subsequently the mother got into a JDA with a builder to develop a layout in 2012. Subsequent to the development of the property and getting approvals to convert the property from non agriculture land to aggriculture land in 2013, Some of the plots was allocated to the relatives of the mother. The plot I intend to buy of 1650 sqft was allotted to both mother and daughter. There is no trace of a sale deed from mother to daughter atleast or to any other relative to which share of land has been allotted. The daughter has given GPA to her younger brother to sell the property since she stays in the USA.
Now I am being told that I have to pay TDS of 22%, for the value of share owned by the daughter since she is an NRI the seller is however insisting that its not required and the entire money can be paid with deduction of 1% tds to the mother alone. And I was also shared the PAN of the daughter. The draft agreement shared still listed both mother and daughter as seller. And the same arrangement has been executed for rest of the plots in the property as well. When I consulted with SBI who is processing the loan they advised that 1% TDS is enough with an ROC from daughter that all payments be made to mother. 
Can someone please help clarify this ?