The category was introduced alongside the Super Cyclonic Storm category during 1999 in order to replace the previously used Severe Cyclonic Storm with Core of Hurricane Winds.
However, it was bifurcated during 2015, when the IMD introduced a new Extremely Severe Cyclonic Storm category.
The North Indian Ocean tropical cyclone basin is located to the north of the Equator, and encompasses the Bay of Bengal and the Arabian Sea, between the Malay Peninsula and the Arabian Peninsula.
[2] At the time it was the second-highest category with systems having 3-minute sustained wind speeds of between 64–119 kn (119–220 km/h; 74–137 mph).
As a result, very severe cyclonic storms are currently estimated, to have 3-minute sustained wind speeds of between 64–89 kn (119–165 km/h; 74–102 mph).