New Delhi, Oct. 18 -- At 80, Jogen Chowdhury is remarkably spry, brimming with ideas and observations. "When does an image become art? What is the difference between a painter and an artist? I would throw questions like these at my students when I began teaching at Kala Bhavana (the school of visual arts in Santiniketan) in 1987," he says. "I still haven't stopped thinking about them."

A couple of floors below the room we are sitting in, a retrospective based on his long and illustrious career is on display. Spread across two storeys of the Kolkata Centre for Creativity, Reverie And Reality is on at Emami Art, a gallery dedicated to contemporary art. Curated by Ranjit Hoskote, it brings into focus the diversity of subjects and styles tha...