It is the country 's largest state in land mass but has only about one percent of the country 's water resources . Singh has devoted his life to solving Rajasthan 's water problems . Alwar is India 's largest state and also one of the driest . Rajendra Singh says rainwater is a resource we can not afford to waste . one water harvesting structures have been made in 10 years .
Singh has devoted his life to solving Rajasthan 's water problems . Alwar is India 's largest state and also one of the driest . Rajendra Singh says rainwater is a resource we can not afford to waste . one water harvesting structures have been made in 10 years .