New Delhi, April 20 -- India's next navy chief Vice Admiral Dinesh Kumar Tripathi enjoys a formidable reputation among his peers as a communication specialist who could solve relative velocity problems in his head while steering frontline warships in the right direction on the high seas with ease. Hardly surprising then that he excelled in career-advancing courses through his four-decade stint with the navy. But it was never all sailing and fighter ships for Tripathi: Singing Kishore Kumar songs and playing spirited sessions of tennis and badminton gave him his much-deserved breaks on land....