Sri Vijaya Puram, Nov. 22: The Chief Secretary, A&N Administration, Shri Keshav Chandra, IAS today unveiled a book penned by him titled ‘When Turquoise Waters Turned Dark’. At a brief function held in the conference hall of the Secretariat, the Chief Secretary unveiled the Book in the presence of Shri Hargobinder Singh Dhaliwal, IPS, DGP, A&N Islands, senior Officers of A&N Administration and members from media fraternity.