India, Jan. 6 -- For more than two decades, Chandigarh's Sector 8 residence of India's legendary athlete Milkha Singh was a familiar address for journalists, a place where sport was discussed with passion, perspective and honesty. While the sprawling garden of the house now misses the warmth and presence of the late Milkha Singh and his wife Nirmal Kaur, the home once again hums with sporting promise. This time, the spotlight is firmly on their grandson, Harjai Milkha Singh.

Flanked by his father, veteran Indian golfer Jeev Milkha Singh, the recently crowned India No.1 junior golfer (U-18) carries himself with quiet confidence. At just 15, Harjai is steadily carving his own path, aware of the towering legacy he represents but equally det...