Himachal Pradesh is a part of Indian Himalayan Ranges. It has wide valleys imposing snow mountains, limpid lakes, rivers and gushing streams. After India became free in 1947, a number of princely hilly states were integrated into a single unit to be administered by the Government of India. Himachal Pradesh came into being as a state of the India Union on April 15, 1948. Subsequently, some more hill areas of the Punjab state were added to this Union Territory and it was made into a full-fledged state. Himachal Pradesh today is one of the most important tourist destinations in India. The high hills of Himalayas welcome the trekkers from all over the world.