Mumbai: D B Marg police on Monday arrested a 27-year-old man, Nirmam Jogani, for allegedly stealing Rs 3 crore diamonds and Rs 5 lakh cash from his diamond trader father’s office in Panchratna building at Opera House on Feb 20. Nirmam allegedly made a duplicate key of the safe. After his father filed a complaint, police analysed CCTV footage and zeroed in on Nirmam. He was arrested from a flat in Lower Parel. tnn