Rajendra Singh has devoted his life to solving Rajasthan 's water problems . It is the country 's largest state in land mass but has only about one percent of the country 's water resources . Alwar is India 's largest state and also Ten thousand of the driest . Rajasthan says rainwater is a resource we can not afford to waste . one water harvesting structures have been made in the 1980s .
Rajendra Singh has devoted his life to solving Rajasthan 's water problems . Alwar is India 's largest state and also Ten thousand of the driest . Rajasthan says rainwater is a resource we can not afford to waste . one water harvesting structures have been made in the 1980s .