According to reports, two country-made bombs were found at the station which have been defused now.
Bomb disposal squads have reached the spot.
"One person has been injured," a police official said.
The injured person was taken to a hospital.
This comes in on a day when Bharatiya Janata Party (BJP)'s prime ministerial candidate Narendra Modi is all set to address a rally in the city.
Over 25,000 thousand people have already gathered at Patna's Gandhi Maidan to attend Modi's 'Hunkar Rally' , reports said.
Reacting to the explosion, Congress general secretary Digvijaya Singh tweeted: " What a coincidence blast at Patna Railway on the day of Modi's Rally ! Challenge to Nitish Govt to find the culprit !"
Modi is expected to arrive at the venue at around 1 pm.
--IBNS (Posted on 27-10-2013)