The youth, Aneesh, who hails from Moradabad in UP, has been admitted to PGIMS in Rohtak where his condition is stated to be critical, according to police.
Government Railway Police (GRP) arrested the two accused after registering a case of attempt to murder against them in connection with the incident.
Police said the incident took place when Aneesh, along with his friends, was going to Delhi in Awadh-Aassam Express train. As the train halted at Rohtak station, Aneesh got down to drink water but on boarding back he found two youths occupying his seat. When Aneesh asked the youths to vacate the seat, they got infuriated and allegedly threw out him from the moving train after engaging him in verbal duel, police said.
Aneesh's friends then overpowered the two youths and handed over the GRP after reaching Jind railway station, added the police.
The police later informed the GRP, Rohtak, officials who went to Khairati village and found Aneesh lying on railway track in a critical condition.
Rahul of Narwana town (Jind) and Rahul of Petwad village (Hisar) have been arrested after being booked under section 302 of the IPC.
Aneesh is under treatment at an emergency ward of the PGIMS in Rohtak, said Snehraj, the Investigative Officer of the case.