Chakrabartty, Aparajita, and Sudakshina Gupta. “Technical Efficiency of Urban Public Transport Undertakings in India: A Study With Special Reference to CSTC”. Arthshastra Indian Journal of Economics & Research 4, no. 3 (June 1, 2015): 20–32. Accessed December 11, 2025. https://www.indianjournalofeconomicsandresearch.com/index.php/aijer/article/view/71377.