Note: After 35 years of hard work, Snehasis Chatterjee estimates the number to be about 7,000.
In 1987, they increased the number to 30,000, no explanation!


Now You Know!

Note: After 35 years of hard work, Snehasis Chatterjee estimates the number to be about 7,000.
In 1987, they increased the number to 30,000, no explanation!


Now You Know!