Insufficient stamp duty paid in 1998 sale deed document.

I had purchased a Mhada Room of 225 Square feet in 1998. Sale deed was made on only Rs. 20 Stamp paper as that time No one was sure of applicability of stamp duty and registration of Mhada Room. registration was not done. I got it transferred in my name from mhada by paying necessary Mhada transfer Fee. The sale deed was made through Advocate. Now In ongoing Amnesty, I wanted to pay deficit stamp duty and get the document regularized hence submitted with required application with supporting documents. The officer wanted me to first get the stamp paper verified. I submitted the same for verification and got the reply as " Name on Stamp paper is not matching with the name mentioned in the register (which is now in department possession) of stamp paper vendor. The stamp paper was purchased from Licensed government vendor as There is big seal on stamp paper. Now in this case with this reason, The application is not being accepted citing verbal reason that the Stamp paper is fake. What shall I do ? what are provisions of law in this case. It is said that Telagi Scam of Stamp paper happened in that period only. Sorry for so long question. I request panel to advise.