Explanation:

Krishna Wildlife Sanctuary is a wildlife sanctuary and estuary located in Andhra Pradesh, India. It is one of the rarest eco-regions of the world owing to the fact that it harbors vast tracts of pristine mangrove forests. It is believed among conservationists as one of the last remaining tracts of thick primary mangrove forests of South India, which is rapidly disappearing due to absence of protective measures.
Agasthyamalai Biosphere Reserve falls in the Malabar rainforests and is one of the noted hotspot areas because of its position in the Western Ghats.
• There are three wildlife sanctuaries within the reserve, Shendurney, Peppara, and Neyyar.
• The Kalakkad Mundanthurai Tiger Reserve was recently included as part of the biosphere reserve. Agasthyamala Biosphere Reserve is the tenth one to be included in the prestigious UNESCO World Biosphere Reserve Network.
• The others are Nilgiri, Gulf of Mannar, Sunderban, Nanda Devi, Nokrek, Pachmarhi, Similipal, Achanakmar-Amarkantak and Great Nicobar.
Madhya Pradesh and Andaman and Nicobar Islands have the maximum number of National Parks (9 each) while Andaman and Nicobar Islands has 96 and Maharashtra has 36 Wildlife Sanctuaries (maximum in India).