Lucknow, June 26 -- A man was arrested after he allegedly threatened a mobile phone shop owner with a pistol and assaulted him during a dispute in Hazratganj, police said on Thursday.

The incident took place around 9.54 pm at Shriram Tower, a busy commercial building in the city centre. The accused was identified by police as Vivek Singh.

According to a complaint lodged by shop owner Kavish Adit, who runs a mobile phone store in partnership with another trader, Singh had visited the shop to purchase a mobile phone when an argument broke out between the two sides. The dispute soon escalated, the complaint alleged.

A video of the incident, which later surfaced on social media and went viral, purportedly shows the accused abusing the shop...