The famous Bengal Chemical Swadeshi Stores were organized by P.C. Ray.

Explanation:
The Swadeshi and Boycott movement was a significant socio-political movement in India during the early 20th century. It was a direct response to the partition of Bengal in 1905 by the British government. The partition was seen as a divide-and-rule policy by the British, as it aimed to weaken the growing nationalist movement in India.

The Swadeshi and Boycott movement aimed at promoting indigenous industries and boycotting foreign goods as a means of protest against the partition. As part of this movement, foreign cloth was burnt in public demonstrations, and people were encouraged to buy and use only Indian-made goods.

One of the important aspects of the Swadeshi movement was the establishment of indigenous industries to replace the dependency on foreign goods. P.C. Ray, a renowned scientist and entrepreneur, played a significant role in organizing and promoting indigenous industries.

Bengal Chemical Swadeshi Stores was one such initiative that aimed at promoting Indian-made chemical products. P.C. Ray established the Bengal Chemical Works in 1892, which later became the Bengal Chemical Swadeshi Stores. The stores sold a range of indigenous chemical products, including medicines, soaps, and other household items.

P.C. Ray's contribution to the Swadeshi movement was not limited to promoting indigenous industries. He was also involved in scientific research and development, particularly in the field of chemistry. His work in developing indigenous industries and promoting scientific research made him a prominent figure in the nationalist movement.

In addition to P.C. Ray's efforts, many other leaders and organizations played a crucial role in organizing and promoting indigenous industries during the Swadeshi and Boycott movement. R.K. Sen, Mukunda Das, and Rabindranath Tagore were also important figures in the movement, but P.C. Ray specifically organized the Bengal Chemical Swadeshi Stores.

Overall, the Swadeshi and Boycott movement was a significant movement that aimed at promoting indigenous industries and boycotting foreign goods. P.C. Ray's efforts in organizing the Bengal Chemical Swadeshi Stores were instrumental in promoting Indian-made chemical products during this movement.

P.C. Ray founded the company in 1901 as an individual initiative with the intention with fostering a spirit of entrepreneurship among the Bengali youth, and provide an alternative to jobs from the colonial British government, it is one of the longest surviving swadeshi company of India now it is managed by government of India and now it is gaining profit .