Thanks for the reply.

What I heard that once BDA transfers the khatha to new person they will take the old original certificate. So in my case I am having the original khatha certificate from 2nd party but I don't have the original khatha certificate of the first party for whom BDA site was ...

Recently I have purchased the house constructed on BDA site. Now I would like to transfer the khatha to my name. Currently I am the third owner.
Could you please tell me the documents that are required for this. Also all my original documents are with Bank. Is it necessary to have original khatha ...