The following table shows the amount of annual rainfall in inches in 8 different states of India. 

how many states have witnessed an increase in the amount of annual rainfall continuously for two times in immediate years ?

5

By observing the table carefully. We observed that :-

In state T increase in rainfall two times from 2015 to 2017 &  2019 to 2021 .

In state A increase in rainfall two times from 2018 to 2020.

In state M increase in rainfall two times from 2018 to 2020.

In state K increase in rainfall two times from 2019 to 2021.

So ans = 4