Most folk in India are drawn to Subash Chandra Bose and the conspiracy theories behind his disappearance. Only a few people remember Jagadeesh Chandra Bose who lived decades earlier. He was the first scientists to invent a wireless communication equipment. Marconi used his inventions a few years later and got a Nobel prize for it.
JC Bose was also a pioneer in the field of Poisons. He was the first to quantitatively demonstrate the impact of poison on living cells and also on metals. He showed that metals can experience a shock when poison touches them.
Siddhas of South India were way ahead of anyone else in documenting the effect of poisons on metal alloys. They created powerful alloys which would not corrode by using different poisons while creating an alloy.