A 28-year-old woman and her minor daughter and son were found dead inside their home here on Monday, police said.
The deaths were reported from Delhi's Khayana area around 5.30 a.m.
The woman's husband, who had gone to Jaipur for some work on Sunday, on return home on Monday found them all dead.
"The woman, along with her 8-year-old daughter and 6-year-old son, were found dead in their house. It seems that the woman was stabbed with a sharp weapon and her throat was strangulated," a police official said.
According to the official, the two children also bore the stab injuries and were found hanging.