1. Andaman and Nicobar islands.
The Andaman and Nicobar Islands one of the Eight Union Territories of India, are a group of islands at the juncture of the Bay of Bengal and Andaman Sea.
The Andaman Islands are home to the only known Paleolithic people, the Sentinelese people, who have no contact with any other people.
The capital of the union territory, Port Blair, is located 1,255 km (780 mi) from Kolkata, 1,200 km (750 mi) from Visakhapatnam and 1,190 km (740 mi) from Chennai.
n Port Blair, the main places to visit are the Cellular Jail, Mahatma Gandhi Marine National Park, Andaman Water sports complex, Chatham Saw Mill, Mini Zoo, Corbyn’s cove, Chidiya Tapu, Wandoor Beach, Forest Museum, Anthropological Museum, Fisheries Museum, Naval Museum (Samudrika), Ross Island and Viper Island. Other places include Havelock island famous for Radhanagar Beach, Neil Island for Scuba diving/snorkeling, Cinque island, Saddle peak, Mt Harriet and Mud Volcano. The southern group (Nicobar islands) is mostly inaccessible to tourists.
Sikkim is a northeastern state of India. It borders China in its north and east, Bhutan in its east, Nepal in its west and the Indian state of West Bengal in its south. Sikkim is also located close to the Siliguri Corridor near Bangladesh. Sikkim is the least populous and second smallest among the Indian states.
Following the beginning of British rule in neighboring India, Sikkim allied with Britain against their common adversary, Nepal. The Nepalese attacked Sikkim, overrunning most of the region including the Terai. This prompted the British East India Company to attack Nepal, resulting in the Gurkha War of 1814.
One of the reason why Sikkim is unexplored is it lies in eastern India which makes a travel little difficult, having said that it attracts hundreds of thousands of tourist every year. Sikkim has its own way of perceiving mountains, it has a beautiful weather throughout the year which makes it a must visit spot.