The arrested accused, Sanju, was in an inebriated state and there was no personal rivalry between him and the victims, DCP (Northwest) Vijay Singh said.
The deceased, Sanjay (25), and his friend Raunak were labourers who loaded and unloaded fruit and vegetable cartons at the wholesale market. While Sanjay died in a hospital, Raunak is still recovering, police said.
According to the police, the incident occurred about 9.30 PM last night when Sanjay and Raunak were walking out of the market with a carton of apples and they were mistaken to be thieves, following which a group of guards allegedly thrashed them.
Some locals in the area called up the police and the duo were rushed to a hospital, where Sanjay died and Raunak is still recovering.
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Today locals staged a protest about the law and order situation in the area and alleged police inaction in the case. When the police went there to arrest Sanju, some locals also pelted stones at the police team in which a few officials were injured, police said.
"Investigation is underway and more persons can be arrested depending on the evidence and the course of the probe," Singh added.