Ambubachi Mela
Ambubachi Mela, the unique and popular festival at Kamakhya Temple held in the month of June, attracts pilgrims from all over India. During the festival, the temple doors remain closed for three days. It is believed that during these days the mother Goddess undergoes her annual cycle of menstruation and the pool containing her yoni (uterus) turns red. Daily worship, other religious performances and farming works are suspended at that time. The doors are reopened on the fourth day and the deity is believed to attain fertility and bless the land with good crops. Red cloth is distributed among the devotees as an offering by the God. 

Manasa Festival  (Debaddhani Festival)
Manasa festival which commence on September is celebrated at Kamakhya Temple in honour of the Snake goddess Manasa also called 'visahari' (the remover of poison). The deity is worshipped during diseases and epidemic. At the festive occasion, offerings are made and devotees invoke the blessings of the Goddess by ritual dressing and dancing. This festival is sometimes known as Debaddhani Festival.

Rongali Utsav
Rangoli Utsav is one of the most important festivals in Guwahati, coinciding with Bohag Bihu. It is celebrated in the month of April at Srimanta Sankardeva Kalakshetra to welcome the onset of the agricultural season. The festival is enthusiastically celebrated by numerous communities of the state irrespective of their caste, religion, creed, faith and belief. Rongali Utsav is an excellent platform for showcasing the different ethnic cultures of the State. The added attraction of the festival is the Ahar mela where one can have a taste of various delicacies from different parts of the country.

Brahmaputra Beach Festival
Brahmaputra Beach Festival is held on the sandy beaches of Brahmaputra during the spring season. The three day long festival is organised by Assam Tourism Development Corporation (ATDC) and the Assam Boat Racing & Rowing Association (ABRRA) to promote indigenous culture, crafts and popularising the traditional sports of Assam. It co-occurs with Magh Bihu, which is the harvest festival of the Assamese people. The festival has thrilling water sports and other  colourful events to cater to all age groups. Exciting adventure sports include wind surfing, rafting, canoeing, kayaking, para-dropping, hot air ballooning etc. Several cultural programmes and entertainment like elephant race and kite flying are also held. The stalls in the mela are occupied with products bearing the signs of traditional craftsmanship.

Jonbeel Mela
The spectacular Jonbeel Mela is held every year during the winter season at Jagiroad, a township located 32kms from Guwahati. In this fair, various tribal communities of Northeast come downwards from the hills with different kinds of products. Before the beginning of the mela, an 'Agni Puja' is performed for  the well being of mankind. The speciality of the fair is the barter system where the people of these tribes interchange their merchandise with the local people. Traditional dance and music performance are also performed to enhance the celebration.