![Prafulla Chandra Ray](https://www.istampgallery.com/wp-content/uploads/2019/06/Prafulla-Chandra-Ray.jpg)
Prafulla Chandra Ray
A commemorative postage stamp on the Birth Centenary of Acharya Sir P. C. Roy, an Bengali chemist and nationalist, founder of 1st Indian pharmaceutical company ‘Bengal Chemicals & Pharmaceuticals’, author of A History of Hindu Chemistry from the Earliest Times to the
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