New Delhi, April 20 -- The Central Bureau of Investigation (CBI) has arrested a deputy director general of the Directorate General of Civil Aviation (DGCA) and a senior executive of a private company in a Rs.2.5 lakh bribery case involving approvals for drone imports, the agency said on Sunday. The FIR identifies the private executive as Bharat Mathur, a senior vice-president at Reliance Industries Ltd and associated with Asteria Aerospace Ltd. According to the FIR seen by HT, Mathur allegedly contacted DGCA official M Devula in March regarding pending applications for drone imports.P7...