The incident took place on January 12 when Raj Kumar, constable with Secretariat Security Force, Ministry of Home Affairs had gone to an ATM in North Block to withdraw money, they said.
When he tried to withdraw the ATM, the machine did not accept his card due to some technical glitch, police said.
The two men allegedly lost temper while standing in the queue and despite Kumar telling them it was not his fault that the machine was not working properly, they abused him and hit him, breaking his two teeth, they said.
Further investigation is underway in the matter, police added.
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