Directed by Shantanu Ghosh, Kolkatay Kohinoor is gearing up for its grand release on 15th March. Before that, the plot of the treasure hunt drama gets leaked. The film revolves around the most precious diamond Kohinoor. The film starts with an eminent historian’s death who leaves a hint that will lead to Konihoor's whereabouts. On the other hand, a French professor of history goes missing in India. The film stars Soumitra Chatterjee and Barun Chanda in the key roles.