Delivery Challan:Ī seller issues a delivery challan using a delivery challan format. It is issued in general as a legal proof document. The term general payment receipt challan refers to any payment receipt issued by a big institution, especially a government institution. OLTAS is the initiative of the Income Tax Department to collect data and record tax paid through banks through the online upload of challan details (Online Tax Accounting System). Taxpayers deposit tax in authorized banks, and the banks file the tax information with the Income Tax Department. Tax Challan is used to pay taxes to the government. With a bank challan, one can deposit money in someone’s account via cash or online transfer. A merchant generates a bank challan for the recipient with all the details and amounts. Bank Challans are official documents, forms, or pieces of paper that act as a method of crediting money between accounts.