Bengaluru, Nov. 3 -- At 75, most people take the easy path. Retired Lt Col OPN Kalyan, however, seems to measure life in extremes.

Antarctica. The Arctic. Skydiving from 7,000 feet in Norway. Running the high-altitude Tawang Marathon. For him, adventure is not a hobby; it is a continuation of a life forged in courage, discipline, and the relentless pursuit of challenge.

He has plunged into sub-zero waters at -3degC, crossed 22 uninhabited Arctic islands, and faced conditions so unforgiving that most would turn back. And yet, he presses forward, smiling at the wind, the cold, and the altitude. "There is no finish line," he seems to say with every step, every jump, every plunge."Lt Col Kalyan's post-retirement feats are built on a foundatio...