The group of people stabbed a youth to death and injured his brothers after a dispute over a train seat near Ballabhgarh in Haryana. "One person has been arrested in this connection," DeputySuprintendent of Police (DSP), Faridabad Government Railway Police (GRP), Mohinder Singh told PTI.The deceased has been identified as Junaid (17) while his brothers Hasim (21) and and Sakir (23) were injured, Singh said. "Sakir is serious," the DSP said, adding that the GRP has registered a case of murder.Singh said the incident happened on board the Delhi-Mathura passenger train between Ballabgarh and Mathura stations. Also Read: Body of woman engineer fished out of river Five persons arrested for allegedly kidnapping and raping a sex worker Date extended for the Application of Team India Head Coach