rectification deed for a sale deed

we have registered a property and also paid the down payment to seller and wanted to take loan of 30 lakhs from SBI. After registration of sale deed sbi person has come for property visit and after checking our deed they want us now to make a rectification deed. Rectification deed because they have found out that in our first agreement there was a sentence ' 'g' building known as "new name" . This appears in First agreement OC but not in any schedule ,index or share certificate. so previously the building was known as g building but now with a proper name which comes in share certificate,index and schedule. so we needed load and we made a rectification deed but now registrar says since this g building comes only in body of agreement and not in schedule it cannot be rectified. and bank is adament on getting rectification deed. what should we do?