Short name listed in sale agreeemnt - how to change?

Hi, Me and my husband recently entered into a sales agreement for buying a property. We have registered the agreement with a 0.1% stamp paper. Our names are mentioned in the short form (N.Anita and R.Rajesh) instead of Anita Narayanan and Rajesh Raman) in the sale agreement. In our pan card and Aadhar card it is listed in full (Anita Narayanan and Rajesh Raman). How do we change it to full names (Anita Narayanan and Rajesh Raman) when we do the final sale deed? Also is the short form accepted legally if the name is different from that of pan card and passport? Thanks, Anita