Abstract - TOD (Transit-Oriented Development) is a long-term development strategy to increase metropolitan regions' quality of life (QoL). The Metro Rail Transit System (MRTS) is an integral part of the TOD plan and significantly impacts contemporary urban development. It is a crucial transformation parameter that influences the overall urban structure. Kolkata was the first Indian city to undergo the TOD urban transformation. The paper examines the historical context of MRTS in the KMC region using conceptual, metric, and non-metric data analysis. This study aims to look at the altering urban morphology within a 400-800 m influence zone of two metro stations in Kolkata Municipal Corporation (KMC). The first is an old metro precinct in Kalighat (operational since 1986), while the second is a new metro precinct in Kavi Nazrul (operational since 1986) that is a newly developed area. Under TOD rules, both station precincts are examined based on built-up area typologies, the ratio of green spaces, change in existing water bodies, typical traffic, and corresponding land values. Since 1991, the Kalighat metro station precinct has had a dense BUA with little change in the urban form, thereby abiding by the TOD policies. The Kavi Nazrul metro station precinct has seen a significant expansion in the BUA due to metro arrival and related services in 2009. Still, it is under development and has not reached the threshold set by TOD policies in the current scenario. Therefore, the study will be helpful for planners and policymakers to plan for a more efficient QoL.