Krishna Chandra Das (1869–1934), commonly referred to as K.C. Das, was a Bengali confectioner, entrepreneur, businessman and Bengali cultural icon of the early 20th century. Born in 1869 in Bag bazar, Kolkata, Krishna Chandra was the only son and successor of the Bengali confectioner and sweetmeat inventor Nobin Chandra Das. Krishna Chandra was a versatile enthusiast with a spirit of scientific exploration. He developed an electric loom, a soda fountain machine, did extensive research on homeopathy, and researched eastern and western classical music. Krishna Chandra Das became an iconic figure in the 1930s Kolkata as one of the creators of "Rosso Malai" and invention of the vacuum canned "Rosso Golla", which were popularized and promoted throughout India by his family organization K.C. Das Private Limited, founded by Krishna Chandra's son and successor Sarada Charan Das.

Nobin Chandra Das (1845–1925) was a Bengali confectioner, entrepreneur, businessman and cultural icon in the second half of 19th and early 20th century. Widely known as the creator of the iconic Bengali sweetmeat "Rosogolla", a popular limerick of 19th-century Bengal labeled him as the "Columbus of Rossogolla" or simply the "Father of Rosogolla".