A 34-year-old passenger from Kalyan has been booked for allegedly beating up a 42-year-old ticket checker inside an express train.

"On Friday night, Rajesh Gupta, a ticket checker, was checking tickets in the 12105 Vidarbha Express when he came across accused 34-year-old Vijayan Perumal, who was travelling without a ticket," the Dombivali railway police official said.