Crude bomb explodes at Patna railway station ahead of Modi's 'Hunkar Rally'

A crude bomb exploded at Patna railway station hours ahead of Bharatiya Janata Party (BJP) prime ministerial candidate Narendra Modi's 'Hunkar rally' in the city's Gandhi Maidan.

However, no casualty has been reported so far.

Security has been beefed up and investigations are on in the incident.

Further details are awaited.