Gupta, Saumya, Jaspreet Singh Sandhu, Vikas Deep, and Purushottam Sharma. “Aadhar Card Based Double Identity Verification System for Railway”. International Journal of Engineering & Technology 7, no. 2.31 (August 24, 2018): 259–261. Accessed April 28, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/18238.