F form

In your case suppose Gujrat Manufacturer is A, Purchaser in Mumbai is B i.e the dealer transferring the goods on title or seller in transit and purchaser in transit is U. Now B will issue "C" form to A and A will issue form "E1" to B, same way B will issue "E2" form to U and U will issue "C" form to B after mentioning the number of "E2" form on it.

F form required for stock transfer- F form is required to be produced as proof of stock transfer. As per section 6A(1) submission of F form is mandatory to prove stock transfer. Otherwise, the transaction will be treated as sale for all purposes of CST Act.

F Form is issued by the branch office/consignment agent receiving goods as branch/stock transfer to its head office/principal who is sending the goods by way of  stock/ branch transfer. The H.O./Principal produces such F forms to its assessing authority to prove such stock/branch transfer.