Yoo Shi Shoumi Nakak was travelling to Haridwar by Amritsar Express yesterday when the incident happened, they said.
As the train slowed down between Tapri station near Saharanpur and Haridwar, a youth entered his coach, lifted his bag lying on the seat and jumped from the train, police said.
The Japanese national lodged a case of theft with the Roorkee GRP saying his bag contained an iPad, a credit card, 1,000 Australian dollars and flight tickets.
Afer informing the Japanese embassy about the incident, Nakak left for Delhi by bus, police said.
