The families had fought when Surendra Mandal, the deceased woman's son had asked his neighbours to switch off the lights for PM Modi's 9baje9minutes call.
Security checks were initiated and metal detectors were used to scan every corner of the busy railway station. The police have also requested citizens to immediately alert the forces if they see any suspicious object or person.
The police believe that Asif had first shot Riya on the head and then committed suicide. They have stated that a failed love affair might have been the reason.