Some query on Khata transfer

Q: Hi All,
I have recently purchased a flat in resale. The sale deed is done. In the sale deed, itself we had added a clause that khata could be transferred to us and the sellers to do not have any objection.
Hence, when I am filling the khata application, do I need to get sign of the Khata owner? In my case the owners are in U.S and hence the property was sold by their Power of Attorney holders and we did not had any issues in getting the sale deed registered. According to me clause in agreement should hold good, please provide inputs.

Also, in the khata form, there is a column called ‘details of sale deed’, what exactly needs to be filled in it?