BN Habitat Pvt Ltd is an Indian company based in Zirakpur, Punjab, and the developer and seller of SignYu (formerly SignSetu), an Aadhaar eSign platform. SignYu lets businesses, freelancers and developers get PDFs signed with Aadhaar OTP eSign, issued through eMudhra, a licensed Certifying Authority, and valid under Section 3A of the Information Technology Act, 2000. Customers pay per signature with no subscription for the web app, and developers can add Aadhaar eSign to their own products through the SignYu REST API. SignYu runs its servers and document storage in India.