Prime Minister Narendra Modi today released a book titled "The Birds of Banni Grassland" in New Delhi, today. The Book is a compilation of the research work, relating to more than 250 species of birds found in the Banni area of Kutch, Gujarat. The book was presented to the Prime Minister by the Scientists of Gujarat Institute of Desert Ecology. The Gujarat Institute of Desert Ecology, located at Bhuj, has been studying the plant, bird and marine life in the Rann of Kutch for over 15 years.