Hi,
You need to apply for new registration ONLY AFTER CANCELLING the current firm's registration (since VAT Act does not permit to carry on 2 business at the same premises). For that you need to surrender ALL ORIGINAL VAT CERTIFICATE/S.
The VAT inspector will come and give a inspection report for the closure of business. But, as soon as you give letter to the concerned department you can proceed with the registration of the new firm with the proprietor status.
Its not clear what transaction you are referring to.
Assuming that you are referring to:
1) Stock : it will be taken over by new firm but for that you have to raise a sales bill thereby nullifying the stock.
2) Debtors/Creditors Balances : It will also be taken over by the new firm.
3) Bank : The Bank account will be closed(Partnership) and a new account will be opened with the proprietorship status.
4)Capital Accounts : it will be settled to the respective partners as per the balances showing in capital accounts.