Commodore Amar K Mahadevan VSM (Left) handing over the Baton & Sea Cap to Commodore Alok Bhatnagar NM (Right). Commodore Alok Bhatnagar, NM has taken over as the Naval Officer-in-Charge (Tamilnadu & Puducherry) on 30 Jun 2015 from Commodore Amar K Mahadevan, VSM on his superannuation, at a ceremonial parade conducted at INS Adyar, Navy Office, Chennai.