Kaziranga National Park, Assam: This picturesque National Park in Assam houses the famous Indian one-horned rhino. The park is so rich in bio-diversity that it has been declared a UNESCO Heritage Site. Here you can see the wild buffalos, large herds of elephants, several types of deer, Hoolock gibbons, and the rare tiger, if you are lucky.

An elephant-back safari on the banks of the Brahmaputra is a must and it is also the best way to observe the rhinos from extremely close range. The lush greenery all around you and the enormous river, which is so wide that you cannot see the other bank, is an experience you will never forget. Birdwatchers also have a field day here as the park has more than 300 species of birds, including the rare Bengal Florican.

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Keoladeo National Park, Rajasthan: Formerly known as the Bharatpur Bird Sanctuary, The Keoladeo National Park or Keoladeo Ghana National Park, is one of the biggest bird sanctuaries in India. The sanctuary plays host to rare Siberian Cranes, Northern Shovelers, Coots, Tufted Ducks, Common Pochard, Gulls, and Ruddy Shelducks among several species of birds. Statistically, it is the favourite hunting ground for more than 230 types of birds. Named after a Keoladeo (Shiva) temple within its boundaries, the place is a nice weekend getaway from a number of major cities. Since the jungle is quite safe, it can also be explored by cycling or on foot. Have a feel of the warmth, beauty, and serene silence of the Mother Nature over here.

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Manas Wildlife Sanctuary, Assam: This is another beautiful National Park of Assam on the north bank of the river Brahmaputra. Tragically, rampant poaching has phased out the rhinos in here. The tiger population is quite high, so even if you are not so lucky you have a good chance of watching them. The place houses rare Golden langur, Hispid hare, Red panda, Wild buffalo, Hog deer, and other deer species also. Ornithologists find this place resourceful due to the presence of large variety of birds. Apart from wildlife watching, you can also visit the neighbouring tea estates, go to the Bodo villages to shop for indigenous handicrafts, see folk dances, and ride the boats on the Manas River.

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Nanda Devi National Park and Valley of Flowers National Park, Uttaranchal: Nanda Devi National Park, residing at an altitude of 3,500 m, was added in the World Heritage Site list in 1988. The Park houses endangered animals like Asiatic Black Bears, Blue Sheep, and Brown Bear among others.

Valley of Flowers National Park, noted for its meadows of indigenous alpine flowers and striking innate beauty, was declared, a national park in 1982. This richly diverse area is of premiere environmental importance due to its distinct alpine flora, epitomizing the West Himalaya biogeographic zone.

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Sundarbans National Park, West Bengal: The union of three mighty rivers 'Ganga, Brahmaputra, and Meghna' resulted the extensive Sunderbans delta with a major portion of it spreading into Bangladesh. The Indian part of the delta is home to the Sunderbans National Park, declared a UNESCO World Heritage Site in 1987. Named after the 'Sundari' trees, once found in large quantities here, the park features an extremely diverse array of vegetation and plant life, as well as houses an astounding variety of wildlife. The place however, is better known for the endangered Royal Bengal tigers whose headcount at present hovers around the 200 mark.

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