Which state celebrated the Rongali Bihu festival?

Bihu is the main festival of Assam. It is celebrated three times a year. Rongali or Bohag Bihu is observed in April. Kongali or Kati Bihu observed in October. Bhogali or Magh Bihu observed in January. Rongali or Bohag Bihu is the Assamese new year and spring festival, which is celebrated from April 15 to April 21. The seven-day festival is celebrated in seven phases - Chot, Kutum, Mela, Raati, Goru, Manuh and Chera. It begins with goru bihu or cow bihu on April 15, where the cows are washed and worshipped. This is followed by manuh (human) bihu on 16 April, the New Year Day when people are seen in new dresses.