Boisabi Utsab, the biggest traditional festival of tribal people, began in Rangamati amid great enthusiasm early Thursday.
Prokriti Ranjan Khisha, president of Adibashi Forum, inaugurated the festival through floating flowers in Kaptai lake at Chakma Rajbari ghat, according to a UNB report.
Besides, the people of Tripura community floated flowers at Garjantoli ghat offering to Ganges goddesses.
The first day of the festival is called 'Phulbijhu', while the second day 'Mulbijhu' and the third day also the first day of the Bangla New Year the 'Gojyapojya Din'.
Former State Minister for Chittagong Hill Tracts Affairs Ministry, Dipankar Talukder MP was present at the inaugural event.
The word Boisabi is a combination of the Bengali acronyms for various indigenous festivals like Boishuk for the Tripura community people, Sangrai of the Marma community, and Bizu for the Chakma community.
On the first day of the festival, people float flowers in rivers or spring water, and take bath seeking divine blessings for their peace and prosperity.