Sikkim, nestled in the Himalayas, is one of Indiaβs most beautiful and serene states, known for its stunning landscapes, Buddhist monasteries, and adventure opportunities.Sikkim is a state in northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Koshi Province of Nepal in the west, and West Bengal in the south. Sikkim is also close to the Siliguri Corridor, which borders Bangladesh. Sikkim is the least populous and second-smallest among the Indian states.