Alka Nangia Arora CGDA: Leadership changes at the top of India’s defence financial architecture often signal shifts in administrative focus, and the latest transition brings a wealth of experience to a critical national security role. Alka Nangia Arora, a distinguished 1991-batch officer of the Indian Defence Accounts Service (IDAS), officially assumed charge as the Controller General of Defence Accounts (CGDA) today, August 1, 2026.