The incident took place yesterday when the two sisters were alone in their house and picked up a fight over some petty issue, Noorabad Police Station In-charge, D K Sharma said.
Soon after argument, the elder sister identified as Deepa Mahour (17) attacked her younger sister Nisha (14) with a scissor causing grievous injuries on her, he said.
When the neighbours came to know about the incident they immediately rushed Nisha to a government hospital where she succumbed to her injuries during treatment.
The cause of an altercation between them is not yet known, police said adding a case of murder has been registered against Deepa in this regard and further investigations were going on.
