Umang Lai are the group of sacred groves preserved for the local forest deities (with the same title), worshipped by the Meitei people, the predominant ethnic group, since ancient times in the Himalayan state of Manipur. The groves and the deities are worshipped and their pleasing ceremony is always celebrated every year through a music and dance festival called Lai Haraoba. There are 365 Umang Lais in the state, out of which 166 are identified in the valley regions of the state.