Four people, including a woman, have been detained in connection with the murder of a businessman and his three employees here, police said Wednesday.
Refusing to divulge names of the detained people, police said they were very close to solving the case.
"Our investigations are on the right track and the case will be solved soon," a police officer told IANS.
Businessman Bajrang Lal Bokadia, 66, his 40-year-old driver Vinod Dubey, 35-year-old cook Bhola Singh and 18-year-old domestic help Anand were found dead inside the businessman's ground floor house at Vivek Vihar in east Delhi Monday morning.
Bokadia was found gagged, his hands and legs tied to a chair and his throat slit.
Police said had said that there was a possibility of robbery or personal enmity.