Sambalpur: A two-year-old girl died after suffering a severe head injury during an alleged altercation between her mother and the latter’s live-in partner at Kalonipara village in Sambalpur district. Police arrested the man, Jitendra Mirdha, on murder charges.According to police, Jitendra, who is married, had been living with Upasi Kisan for about a year. Upasi was also previously married and has two children. The deceased was her second child. Neighbours said Jitendra and Upasi had frequent fights over his first wife, who currently stays at her parental home.On Wednesday night, a fresh quarrel broke out, which flared up again on Thursday morning. During the altercation, Jitendra allegedly pushed Upasi, causing her and her daughter, Soumya, who was standing nearby, to fall. The child sustained a head injury and bled profusely, police said.Investigators alleged that instead of rushing the injured child to the hospital, the couple kept arguing. As the situation worsened, local residents alerted police around noon.Police reached the spot and shifted Soumya to Sambalpur district headquarters hospital, where doctors declared her dead. Her mother Upasi, who also suffered injuries in the incident, is undergoing treatment at the hospital.Thelkoloi IIC Gurudev Karmi said a murder case has been registered and an investigation is underway. The child’s post-mortem examination has been conducted and the body handed over to the family.