The infected persons have been admitted to a Covid hospital while their contract tracing and travel history is underway, officials added.
Yesterday, three passengers tested Covid-19 positive from the railway station in the State Capital.
A senior railway official said that the authorities have intensified vigil on passengers travelling from Maharashtra and Mumbai city.
The testing shift at the railway station has also been increased, he said.
The covid tastings were carried out in two phases between 6 am to 10 pm at the railway station here. However, it is now decided that the testing will also be conducted on passengers arriving after 10 pm as well, he added.
Odisha recorded 471 new Covid-19 cases on Sunday, taking the total number of active cases in the state to 3085.