India, Nov. 9 -- When a teacher departs, the blackboards weep. A generation of learners, spread across the world, pause and go back in time, overwhelmed by a quiet sense of gratitude and loss.

Such is life, and such is India's timeless Guru-Shishya parampara, where many jambavans silently walk the corridors of knowledge, leaving behind an imprint that endures long after they are gone.

Professor Vaidyeswaran Rajaraman was one of them.

He passed away on 8 November 2025 in Bengaluru, aged 92. For India's technology community, it feels as if a quiet light has gone out.

In 1997, Dataquest had the honour of presenting him the Lifetime Achievement Award. It was one of those rare moments when the industry paused to recognise a teacher. Prof R...