District and Sessions Court Judge Amarjot Bhatti awarded life imprisonment to Vimal Gupta, his wife Brij Bala, son Vikas and his wife Kavita, another son Lalit for the murder of Lalit's wife Manisha and her 15-month-old daughter Diwanshi.
Manisha and Diwanshi were murdered by Lalit on June 5, 2009, after Vikas' three-year-old daughter went missing from their residence at Gaushala Road, police said.
Based on a complaint by Manisha's father, Vipin, a case was registered against the five, police said.
In case of default, the accused will have to further undergo one year imprisonment, the court held.