Explanation:

Only statements 1&4 are correct.

• The international environmental think tank ‘Germanwatch’ released the Global Climate Risk Index 2021.
• This is the 16th Edition of the Index. It is published annually.
• The most recent data available for 2019 and from 2000 to 2019 were taken into account.
• The Index analyses the extent to which countries and regions have been affected by the impacts of weather-related loss events (storms, floods, heat waves etc.).
• The impact is calculated in terms of fatalities and economic losses, both.
• Impacts from extreme-weather events hit the poorest countries hardest as these are particularly vulnerable to the damaging effects of a hazard, have a lower coping capacity and may need more time to rebuild and recover.
• High-income countries are also getting severely impacted by climate change.
• India has improved its rankings from last year. It is ranked 7th in the 2021 Index as compared to 5th in 2020 Index. 
• The Indian monsoon lasted a month longer than usual in the year 2019, with surplus rains causing major hardship.
• The rain was 110% of normal, which is the most since 1994.
• India was hit by a total of 8 tropical cyclones, of which, Cyclone Fani (May, 2019) caused the maximum damage.

Hence option 1st is correct.