Gagan Khanduja (40) was killed when he was returning home after purchasing a cake for his son's birthday. He was shot from point blank range, the police said.
SP City Akash Tomar said that acting on a tip-off, police and crime branch officials nabbed the main accused, Mintoo Tyagi, this morning from near a school.
Tomar said that the pistol used in the crime was also seized from Tyagi. The police during interrogation learnt that Khanduja was not repaying Rs 2.5 lakh to the accused and had heated arguments with him, the officer said.
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