A man and his three associates were arrested in the national capital for stabbing his 36-year-old businessman brother for property, police said on Wednesday.
Atul Jain and three others, including a minor, were held for murdering Sandeep Jain in Vikaspuri in west Delhi, a police officer said.
Sandeep's body was found in a park in the capital on Sunday.
"Atul was a taxi driver and had no source of permanent income while his brother, who ran a sweetshop, was doing well. Atul decided to kill his brother to take over his business," the officer said.