It is celebrated over a period of several days. Kati Bihu, which is also known and Kongali Bihu marks the completion of sowing and transplanting of plants. Magh Bihu or Bhogali Bihu celebrates the culmination of the harvesting period. The observance. 

Traditionally, Bihu is celebrated with folk dance and song, symbolizing the communication of love. Kati Bihu is celebrated in the of October when people pray by lighting an earthen lamp in a paddy field. On the other hand, Bhogali Bihu is celebrated in mid-January after cultivation yields. Every year, the festival is celebrated with great enthusiasm and passion irrespective of caste and religion.

Out of the three Bihu celebrations, Bohag Bihu is the most popular and marks the arrival of the spring season, The festival is celebrated for many days and is a period of enjoyment for everyone. Each of the occasions has its own importance.

According to scholars, the history of Bihu dates back to 3500 BC, where people made sacrifices for a better harvest. The festival is thought to have originated from the times of Dimasa Kacharis, an agarian tribe who previously lived in the northeastern part of the world.  Bihu is thought to be the modern version of the Bisuva festival, which was celebrated when the sun changed its position from one sign of the Hindu zodiac calendar to another.

Celebrations usually last two days, the first is known as Uruka or Bihu Eve. On this day, dishes for the feast are prepared, such as: Chira, Laru, Pitha and Curd for Bhuj, where the delicious food is relished in the makeshift huts (called a Bhelaghar). The second day of celebrations consists of a post-harvest celebration called Meji and bonfires are lit in the fields as people pray to God. In addition, the huts are burnt by people on this day as part of the ritual Meji Jwaluwa, to fertilise the fields.

North-East India is often overlooked and by doing so many people miss out out on the rich culture that each North-Eastern state ( Arunachal Pradesh, Assam,Manipur, Meghalaya, Mizoram, Nagaland,Sikkim and Tripura) have to offer. It is one of the most fascinating, biodiverse places in the world.