What is the climatic issue that significantly influences the Indian subcontinent?
Here are a number of interesting articles on that phenomena.
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=Indian+monsoon+season&btnG=Google+Search
http://www.google.com/search?hl=en&ie=ISO-8859-1&q=Indian+monsoon+season&btnG=Google+Search