Hello Hamari Vani, my name is Naresh Kumar and I am from Hisar, Haryana, 100% blind. This information is for Ravindra Chauhan ji, who asked for the contact number of NFB Delhi (National Federation of the Blind) and the required documents for membership. You only need Aadhaar Card, UDID Card, and two passport-size photos; with these documents, you can visit the NFB office located in Shakti Nagar, Delhi, where after verification you will receive a membership valid for 3–4 years. As a member, you get services such as railway concession form filling, government form assistance, and document verification free of cost. For more details, you may contact the General Secretary, Om Prakash Ji, at 8059 330 073.