Starting April 1, 2025, the National Informatics Centre (NIC) will enforce Two-Factor Authentication (2FA) for taxpayers and transporters accessing the e-Way Bill and e-Invoice systems. This security measure requires users to authenticate their login using a one-time password (OTP) in addition to their username and password. OTPs can be received via three methods: SMS on the registered mobile number, the government-provided Sandes messaging app, or the NIC-GST-Shield app, which generates OTPs offline and refreshes them every 30 seconds. To enable 2FA, users must log in to the e-Way Bill System, navigate to the 2-Factor Authentication option, and confirm registration. Once activated, OTP authentication becomes mandatory for all logins, including sub-users under a GSTIN. The main user can create and manage sub-users, assigning specific permissions for e-waybill operations. The system also allows monitoring of sub-user activities. This implementation aims to strengthen access control and enhance security within the e-Way Bill and e-Invoice systems.
Starting April 1, 2025, the National Informatics Centre (NIC) will enforce Two-Factor Authentication (2FA) for taxpayers and transporters accessing the e-Way Bill and e-Invoice systems. This security measure requires users to authenticate their login using a one-time password (OTP) in addition to their username and password. OTPs can be received via three methods: SMS on the registered mobile number, the government-provided Sandes messaging app, or the NIC-GST-Shield app, which generates OTPs offline and refreshes them every 30 seconds. To enable 2FA, users must log in to the e-Way Bill System, navigate to the 2-Factor Authentication option, and confirm registration. Once activated, OTP authentication becomes mandatory for all logins, including sub-users under a GSTIN. The main user can create and manage sub-users, assigning specific permissions for e-waybill operations. The system also allows monitoring of sub-user activities. This implementation aims to strengthen access control and enhance security within the e-Way Bill and e-Invoice systems.
National Informatics Centre
2- Factor Authentication for e-Way Bill and e-Invoice System
To enhance the security of e-Way Bill/e-Invoice System, NIC is introducing 2- Factor Authentication for logging in to e-Way Bill/e-Invoice system. In addition to username and password, OTP will also be authenticated for login.
There are 3 different ways of receiving the OTP. You may enter any of the OTP and login to system. The various modes of generating OTP are explained below:
1. SMS: OTP will be sent to your registered mobile number as
2. On 'Sandes' app: Sandes is a messaging app provided by government so that you can send and receive messages. You may download and install the Sandes app on your registered mobile number and receive the OTP in it.
3. Using 'NIC-GST-Shield' app: 'NIC-GST-Shield' is a mobile app provided by e-Way Bill /e-Invoice System, so that OTP can be generated by using the app. This app can be downloaded only from the e-Waybill / e-Invoice portal from the link 'Main Menuà2-Factor Install NIC-GST-Shield'. Download, install and register this app on your registered mobile number. You should ensure the time displayed in the app should be in sync with e- Waybill
/ e-Invoice system. On opening the app, OTP is displayed. You may enter this OTP and continue the authentication. The OTP gets refreshed after every 30 seconds. You will not require internet or any dependency on mobile network for generating the OTP on this app.
Registration for 2-Factor Authentication:
On logging to e-Waybill System go to Main Menuà 2 Factor Authentication and confirm the registration. Once confirmed, the system will ask OTP along- with username and password. The OTP authentication is based on individual user accounts. The sub users of GSTIN will have separate authentication depending on their registered mobile number in the e-Way Bill/ e- Invoice System. Once you have registered for 2 Factor authentication, then the same is applicable for both e-Way bill and e-Invoice system.
Creation of sub-users:
For better management of e-waybills, main users may create sub-users and mobile number of the sub-user may be updated accordingly. The sub-user may be granted permissions to generate e-waybill or cancel e-waybill or all the options. Further, the activities of the sub-users may be monitored by the main-user on a regular basis.