Attacks, some claimed by the Pakistani Taliban, have risen, mostly targeting police and security officials
People from Indonesia, Sri Lanka and Pakistan are also taking part in the annual festival at Medinapore town in West Bengal, according to the Press Trust of India or PTI.
A special medical team was deployed for the screening at the railway station there, the state news agency said, citing officials, on Tuesday.
A train carrying 2,321 pilgrims from Dhaka arrived in the station on Monday.
Hundreds of pilgrims have gathered for the festival at the shrine of Sufi saint Syed Shah Mehr Ali Alquadri Al Baghdadi. The Urs from Monday to Wednesday marks the 119th anniversary of the festival.