[Geog] How cyclones are named in Indian Ocean?

North Indian Ocean between 45°E – 100°E, tropical cyclones are named by the India Meteorological Department (IMD/RSMC New Delhi) when they are judged to have intensified into a cyclonic storm with 3-minute sustained wind speeds of at least 34 kn (39 mph; 63 km/h).

There are eight lists of names which are used in sequence and are not rotated every few years; however, the names of significant tropical cyclones are retired.

The countries which give names for the cyclones in the Indian Ocean are:

1)   Bangladesh

2)   India

3)   Maldives

4)   Myanmar

5)   Oman

6)   Pakistan

7)   Sri Lanka and

8)   Thailand

  

Contributing nation
Bangladesh	India	Maldives	Myanmar	Oman	Pakistan	Sri Lanka	Thailand
Onil	Agni	Hibaru	Pyarr	Baaz	Fanoos	Mala	Mukda
Ogni	Akash	Gonu	Yemyin	Sidr	Nargis	Rashmi	Khai-Muk
Nisha	Bijli	Aila	Phyan	Ward	Laila	Bandu	Phet
Giri	Jal	Keila	Thane	Murjan	Nilam	Viyaru	Phailin
Helen	Lehar	Madi	Nanauk	Hudhud	Nilofar	Ashobaa	Komen
Chapala	Megh	Roanu	Kyant	Nada	Vardah	Maarutha	Mora
Ockhi	Sagar	Mekunu	Daye	Luban	Titli	Gaja	Phethai
Fani	Vayu	Hikaa	Kyarr	Maha	Bulbul	Pawan	Amphan
The shaded names are already kept [as of Oct 12, 2018]