The three women entered the showroom around 4.30 PM on February 20 and started throwing away mobiles and computers.
They also beat up the staffers with slippers and iron rods, the shop owner said in a police complaint.
He said that they had made repeated pleas to the women to stay calm but the women didn't listen to them and kept on throwing things.
The entire incident was captured in the CCTV camera installed in the shop and an employee of the shop also recorded the entire incident on his mobile phone.
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According to the complaint, a woman, accompanied by her mother and daughter, entered the showroom and asked a sales representative to give her a new phone as she was facing problems with her phone bought from the same shop around five months ago.
The phone was even insured and they had submitted it to the service centre of the insurance company in Janakpuri but due to some problems with its spare parts, it hadn't been repaired till now, the shopkeeper told police.
The mobile clipping shows the women throwing things and even trying to hit the employees.
The owner of the shop also alleged that the women even pulled the scared turban worn by them.
A case under sections 451 (trespassing), 427 (causing damage to the amount of Rs 50), 323 (causing hurt) and 34 (acts done by several persons in furtherance of common intention) of the IPC has been registered, said a senior police officer.
The women have been called for questioning and have joined the probe, said the officer.