B. S. Navi and Vijaykumar Talawar 2026. Financial Efficiency Dynamics of Indian Public Sector Banks Before and After the 2020 Merger: An Empirical Study Using Data Envelopment Analysis. International Journal of Computer Information Systems and Industrial Management Applications. 18, 22s (Sep. 2026), 1641–1650. DOI:https://doi.org/10.70917/ijcisim-2026-5763.