Because India is a country that has a huge population, causing a shortage. The main causes are poverty, climate, such as inequality in the social, economic, etc., which need to be resolved or mitigated the problem.
Since India is a country with a large population, which caused a shortage. The main causes of poverty, such as climate change. Inequalities in social, economic, etc., which must be corrected or alleviated the problem.
Because India is the country with the most population, which led to the scarcity. The main cause of poverty, such as climate, inequality in society, economy etc.