The correct answer is: Lui-Ngai-Ni.
Lui-Ngai-Ni is a major festival celebrated by the Tangkhul Nagas of Manipur. It is a harvest festival that marks the beginning of the new year. The festival is celebrated for three days and nights, and is a time for feasting, dancing, and singing.
The festival is said to have originated from a time when the Tangkhul Nagas were living in a state of poverty and famine. One year, a woman named Lui-Ngai-Ni had a dream in which she was told to plant a certain type of grain. She followed the instructions in her dream, and the grain grew abundantly. The Tangkhul Nagas were able to harvest the grain and save themselves from starvation.
In honor of Lui-Ngai-Ni, the Tangkhul Nagas celebrate a festival every year to commemorate her dream and the bountiful harvest that followed. The festival is a time for thanksgiving and celebration, and is a reminder of the importance of agriculture and the land.
The other options are also important festivals celebrated in Manipur, but they are not as well-known as Lui-Ngai-Ni. Chapchar Kut is a festival celebrated by the Meitei people of Manipur. It is a harvest festival that marks the end of the agricultural season. The festival is celebrated for three days and nights, and is a time for feasting, dancing, and singing.
Cheiraoba is the Manipuri New Year. It is a time for family reunions and feasting. The festival is celebrated on the first day of the lunar month of Chaitra.
Yaoshang is a spring festival celebrated by the Meitei people of Manipur. It is a time for courtship and merrymaking. The festival is celebrated for ten days, and is a time for feasting, dancing, and singing.