Need advice on Sale Deed registration

Hi,

My loan is sanctioned, but still one document proof is pending on my side. It will take another 4-7 days to get the document proof original as it is stuck in my hometown. Meanwhile Seller is saying we can go ahead with the Sale deed registration and you can sign the loan agreement once the proof is available. Is it safe to do so? Need your inputs and advice.


Thanks in Advance.
Prabakaran M