London/Hyderabad, Feb. 5 -- Mohd Riaz Hasan, a United Nations consultant and hydrologist who spent more than two decades dedicated to global water security through the Food and Agriculture Organisation (FAO), passed away peacefully in London in November last year at the age of 87. His life spanned continents, cultures, and generations - defined by professional excellence, unwavering family devotion, an unshakeable belief in the power of knowledge and action, and service to others.

Born in Warangal, Riaz was the son of Mohammed Suleiman, an English professor whose home overflowed with Allama Iqbal's poetry. When his father passed away, his older brother Mohd Mehboob Ali stepped in, devoting 20 years to raising and educating Riaz and his b...