New Delhi: Exhorting India to become a leading country in drone technology, Prime Minister Narendra Modi on Sunday said the Army, Navy and Air Force have placed orders worth more than Rs 500 crores with the Indian drone companies, adding that after the introduction of the new drone policy on August 25, foreign and domestic investors have put money into several drone startups. In his monthly “Mann ki Baat” address, Mr Modi pointed out that India had become one of the first countries in the world that was preparing digital records of land in its villages with the help of drones, while also referring to other civilian uses for drones including farming, monitoring of infrastructure projects, delivery of goods at home and even vaccine delivery.