A love saga of 60s and 70s. Go back to the times of democratic upsurge and the days of an epidemic that affected the whole world. Lovers and budding medical students move apart and meet as practitioners to work for a cause, but conditions go harsh. Unfurl the incidents that affected the flourishing love of Ronobir and Kusum, a saga that transcends through the days of war and unrest. This leap year, we ask you to take a leap of faith and tie-in to a once in a lifetime story of love that is far beyond the usual. It Happened In Calcutta.