1. Bhola cyclone of 1970:
Topping the list for the biggest tropical cyclones ever evidenced is the 1970 Bhola Cyclone hit East Pakistan (Bangladesh today) and India's West Bengal on November 12, 1970.
Though the exact death toll is indefinite, it is anticipated that 300,000-500,000 people putrefied in the after effects of this storm, making it one of the biggest natural disasters recent history.
The cyclone was not huge but the killing power of this storm was almost completely attributed to the cyclone's course which flooded most of the low lying islands in the Ganges Delta, literally wiping villages and crops off the face of the earth.