A six-year-old girl died while her mother and younger sister sustained severe injuries after they were allegedly beaten up in Rohini area, police said on Thursday.
Sheetal (24) along with her two daughters aged six and three lived in Prem Nagar locality of Rohini, police said.
The statement of the mother is yet to be taken, police said.
Deputy Commissioner of Police (Rohini) Pranav Tayal said that on Wednesday, information was received at Prem Nagar police station wherein the caller informed that his sister and his two nieces were at house where someone had beaten them and he has shifted them to Sanjay Gandhi hospital.
When police reached the hospital, they found Sheetal and her daughters admitted at hospital, the officer said.
A case was registered under section 307 (attempt to murder) of Indian Penal Code (IPC) and after the subsequent death of six-year-old girl, section 302 (murder) was added to the matter.
"We are conducting raids to nab the suspect and further investigation is in progress. We are waiting to record the statement of the mother," he added.
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