Odisha State Road Transport Corporation operates under the Transport & Commerce Department of Govt. of Odisha. It is the only organization of the Government which provides passenger transport in the state of Odisha.
In 1948, the State Govt. took over operation of bus services run by erstwhile princely states under State Transport Services (STS) of Transport Department.
In 1950, the Central Act, R.T.C. Act was enacted (Act No. 64 of 1950) which required creation of Road Transport Corporations under respective State Governments. The OSRTC Rules were passed in 1967.
The assets and employees of State Transport Services were turned over to the O.S.R.T.C., which became functional w.e.f. 15.05.1974.
The Corporation started functioning with Share Capital Contribution from the State Govt. and the Central Govt. in the ratio of 2 : 1.
The O.R.T. Company, operating mostly in the southern parts of the state merged with the OSRTC in 1990 along with all its assets, liabilities and employees.