A 65-year-old woman and her daughter were found murdered with stab injuries at their residence in east Delhi's New Ashok Nagar on Monday morning, police said.
The deceased have been identified as Sumita and her daughter Samrita (25).
On scanning the CCTV footage of the area, police said two men were seen entering and exiting the house.
One of the accused, identified as Vinay, alias Vikrant Nagar, was apprehended on the way to Jaipur after which a team of the Delhi Police has been sent to Rajasthan to bring him back.
"Various clues were developed by analysing the CCTV footage and local intelligence. We coordinated with the Rajasthan Police and with their help, we have apprehended the accused," said senior police officer Jasmeet Singh.
Further investigation will be carried out after the accused is brought to Delhi, Mr Singh said.
Police said Sumita worked in an event management company while her daughter Samrita was undergoing training in the hospitality sector.
Police were informed about the incident by their neighbours.
The bodies were found in a pool of blood.
The neighbours told police that Sumita's husband had passed away around 20 years ago, a senior police officer said.
It appeared as if the accused were waiting for Samrita, the officer said.
The two men fled in Samrita's car, the officer added, stressing that the accused appeared to be known to her.