Upendrakishore Ray Chowdhury was a Bengali writer, painter and entrepreneur. One of the books he wrote is Chotoder Shera Bigyan Rochona Shongkolon. He was the son-in-law of reformer Dwarkanath Ganguly. He was also an entrepreneur. He was the first person who introduced color printing in Bengal. He started the first colour children's magazine Sandesh in 1913. From Wikipedia
