Wikipedia
According to Meitei's (people of Manipur, India), every year in the advent of summer season Gods visit the earth for the peace and prosperities of human beings. People on earth celebrate this event with joy. This celebration is called Laiharaoba. It was originated from the temple of Lord Thanjing, Moirang (45 km south from the capital of Manipur). The dance that is performed here is known as Laiharaoba Dance. The dance represents the legendary hero Khamba and the heroine Thoibi dancing for Thangjing.
Lai Haraoba is a ritualistic festival of the Meiteis observing from the ancient times. It is a ritual enactment of the creation myth. It mirrors the entire culture of Manipur and depicts the close affinities between the hill and plain people. It is in fact the combination of religious recitations, traditional music and dance, traditional social values and ancient cultural aspects.