Regarding form 402

E-way bill must be generated when there is a movement of goods of more than Rs 50,000 in value to or from a Registered Person. A Registered person or the transporter may choose to generate and carry e-way bill even if the value of goods is less than Rs 50,000.
Unregistered persons or their transporters may also choose to generate an e-way bill. This means than an e-way bill can be generated by both registered and unregistered persons. However, where a supply is made by an unregistered person to a registered person, the receiver will have to ensure all the compliances are met as if they were the supplier.