# SEZ Online > SEZ Online is an online system developed and implemented by NSDL Database Management Limited (NDML) as per the directive of the Government of India, Ministry of Commerce & Industry, Department of Commerce, to enable electronic filing and processing of SEZ-related transactions for SEZ Units, Developers, Co-Developers and SEZ administration. SEZ Online provides internet-based access to electronic filing, processing, validation and tracking of SEZ-related transactions and supports transparent, standardized and single-window processes across SEZs. ## Main Website * [SEZ Online Home](https://www.sezonline-ndml.co.in/): Official SEZ Online website and access point for SEZ-related services. * [SEZ Online Login](https://www.sezonline-ndml.co.in/User/Login.aspx): Existing user login and access to SEZ Online services. * [First Login / New User](https://www.sezonline-ndml.co.in/User/NewUserFirstLogin.aspx): First-login and user verification process for SEZ Online users. ## SEZ Online Services * [Setting Up New SEZ / Unit](https://www.sezonline-ndml.co.in/): Information and access related to setting up a new SEZ or Unit. * [Regularisation of Existing SEZ / Unit](https://www.sezonline-ndml.co.in/): Information and access related to regularisation of existing SEZs and Units. * [Online Duty Payment](https://www.sezonline-ndml.co.in/): Online duty payment services available through SEZ Online. * [Check Integration Status](https://www.sezonline-ndml.co.in/): Facility for checking integration-related status. * [Verify Letter of Approval (LOA)](https://www.sezonline-ndml.co.in/): Facility for verification of Letter of Approval. * [Verify Status Certificate](https://www.sezonline-ndml.co.in/): Facility for verification of SEZ status certificates. * [Verification of Zero Rated Supply](https://www.sezonline-ndml.co.in/): Facility for verification of zero-rated supply from DTA to SEZ. ## Notices and Updates * [SEZ Online Important Notices](https://www.sezonline-ndml.co.in/ImpNotices.html): Official notices, system updates, maintenance announcements, feature releases, tariff and budget-related changes, and other important communications. ## User Resources * [SEZ Online Login and User Resources](https://www.sezonline-ndml.co.in/User/Login.aspx): Access to self-learning manuals, data upload utilities, downloads, telephonic support and important guidelines. * [SEZ Online First Login](https://www.sezonline-ndml.co.in/User/NewUserFirstLogin.aspx): Information required for first-time user verification and account activation. ## Verification and Reference Information * [NDML GSTIN Details](https://www.sezonline-ndml.co.in/User/GSTN.html): Official GSTIN and organisation details for NSDL Database Management Limited. * [SEZ Online Login](https://www.sezonline-ndml.co.in/User/Login.aspx): Access to verification and reference facilities including LOA, status certificate and zero-rated supply verification. ## Organisation * [NSDL Database Management Limited](https://www.ndml.in/): Organisation responsible for development and implementation of the SEZ Online system. ## Important Scope SEZ Online is intended for SEZ Units, Developers, Co-Developers and relevant SEZ administration and government users. Information published on this website should be considered the authoritative source for SEZ Online services, system functionality, notices and operational updates. ## Optional * [SEZ Online Important Notices](https://www.sezonline-ndml.co.in/ImpNotices.html): Historical and current notices and system announcements. * [SEZ Online Login](https://www.sezonline-ndml.co.in/User/Login.aspx): Operational access and user-facing service information.