Gradually the structure of State Transport Services turned into a full-fledged organization with spreading its network of operation throughout the entire city (mainly covering Calcutta Improvement Trust area).

After that CSTC could not sustain the increased passenger demands in the city mainly due to the financial constraints.

Over the years, with rapid expansions of long-distance operations, CSTC connected remote rural areas of the state with Kolkata.

In the year 1989, a new body was formed, named West Bengal Inland Water Transport Corporation Limited, for the operation of Vessel services.

Later this was merged into West Bengal State Transport Corporation, which provided bus services in Kolkata and different areas of South 24-Parganas, along with the CSTC.

Previously, the depots were separately administered by CSTC, CTC, WBSTC, NBSTC, SBSTC.

These planned routes will closely knit Govt and Private Hospitals, Blood Banks, major Nursing Homes, Burning Ghats, Burial Grounds where stranded passengers will easily avail these services.

To cope up with the increasing demand of public transport in the city, some innovative measures were taken up, with a cost of ₹ 9,39,89,926, except fleet management.

Food, music and art will be added in due course to make it an international tourist destination for tram lovers.