Trans 1 (Query)

Pratik Joshi (73 Points)

16 November 2017  
If a dealer has sold his goods in the month of March, 2017 in the Vat regime, by levying 6% Vat in the invoice, but the Purchaser paid to him the invoice amount with only 5 % Vat by legal changes in the rate at that time.
the dealer paid 6% Vat to govt.
In short, the dealer Collected 5% Vat & paid 6% Vat to the government.

can he claim refund of credit in form Trans 1 ? 
and if yes, under which table ???