The accused Mohinder called up police and reported that he had murdered his 30-year-old sister Jyoti.
The incident took place around 3 AM in R K Puram's Sector 3. When a police team reached the spot, it found Jyoti's lifeless body lying in a pool of blood.
"Mohinder had some injuries on his body which were probably caused during a scuffle between him and the deceased. He was taken to a nearby hospital for first aid following which he was arrested," said a senior police official.
Initial investigations suggest that Mohinder killed his sister as he feared that she will take control of parental property after her marriage.