To get online “C” and” F” form , dealers needs to make requisition for forms by visiting portal http://tax.assam.gov.in and selecting option “e-Issuance of C and F form” under E-services. Only dealers registered for e-services in the department and having Userid /password for working online can make requisition online. Userid/password may be obtained from the concerned unit office where the dealer is registered. After successful login in the portal, Dealer needs to select the Form Type and Period for which form is required. Selling dealer details then needs to be entered. After entering selling dealer details invoice details can extracted using option "Extract Invoice Details from Interstate Purchase”. After extracting, and selecting invoices, ”Update and Submit” option can be used by dealer to get acknowledgment number against the C/F form request. Dealer can use “Print” option to download forms generated by concerned accessing officer.