• 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.