The victims, identified as Sandeep alias Mental and his associate Pawan Maan alias Ponny, 29, were on their way to the Dwarka court for a hearing in one of the cases in which Sandeep was an accused.
They were coming from Gurgaon when they were attacked by three men, who arrived in a motorcycle and car respectively, police said.
Sandeep and Pawan were traveling in a car when they were overtaken by the accused, who opened fire at them.
The accused fired close to 8-10 rounds on the victims, they said.
The duo sustained bullet injuries and were admitted to a hospital, where they were declared dead, police said.
The duo, in partnership with some others, was involved in construction activities on a plot in Pochanpur village in Dwarka for the last few months.
However, in the last two-three weeks, some property dispute had emerged between Sandeep and other party. Police suspect this dispute to be the reason behind the incident, police said.
A senior police officer said that they have identified some suspects in the case and are on the lookout for them.
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