Yes, one can extend the validity of the e-way bill, if the consignment is not being reached the destination within the validity period due to exceptional circumstance like natural calamity, law and order issues, trans-shipment delay, accident of conveyance, etc. The transporter needs to explain this reason in details while extending the validity period.
The transporter, who is carrying the consignment as per the e-way bill system at the time of expiry of validity period, can extend the validity period.
There is an option under e-way bill to extend the validity period. This option is available for extension of e-way bill before 4 hours and after 4 hours of expiry of the validity. Here, transporter will enter the e-way bill number and enter the reason for the requesting the extension, from place (current place), approximate distance to travel and Part-B details. It may be noted that he cannot change the details of Part-A. He will get the extended validity based on the remaining distance to travel.