Himachal Pradesh celebrated its 71st foundation day with much fanfare and gaiety. Several cultural events were organized across the state. It may be recalled that the hill state came into existence after the merger of 30 odd princely states in 1948. The main event was held at Ridge Maidan in Shimla, where Chief Minister Jairam Thakur reviewed the ceremonial Parade presented by police, home guards and NCC cadets.