Dr. A. Shaji George, Dr. S. Sagayarajan, Dr. T. Baskar, and Digvijay Pandey. “From Paperwork to Biometrics: Assessing the Digitization of Air Travel in India through Digi Yatra”. Partners Universal International Innovation Journal 1, no. 4 (August 25, 2023): 110–125. Accessed August 25, 2026. http://www.puiij.com/index.php/research/article/view/85.