E-way bills are required for the movement of goods over Rs. 50,000 between states and union territories in India. They are electronic documents generated on the GST portal that must accompany goods in transit. E-way bills provide benefits like ensuring goods are reaching the recipient, preventing tax evasion through generation of fake invoices. They must be generated by the supplier, recipient, or transporter depending on who arranges the movement of goods. Various details must be provided in the e-way bill including the transporter details, goods description, and validity is dependent on distance of transport. E-way bills can be verified by tax officials during transit and cancelled if goods are not transported as described.