She is headed to Bangkok at the invitation of her Thai counterpart Srettha Thavisin
The tribals are observing festivals like Biju, Sangrai, Boishuk, Bishu, Bihu in the Chittagong Hill Tracts.
A statement on behalf of Rangamati Shibir Chief Shahidullah Kausar, Khagrachari Chief Minhaz Uddin and Bandarban Chief Harun Ar Rashid claimed that Shibir central President Mohammad Delwar Hossen was arrested intentionally over false case.
He (Delwar) has been taken away under 14-day remand and is being tortured, said the statement.
Shibir called the shutdown nationwide, but due to tribal festivities, the three regions are to be spared the shutdown, the statement read.
The tribal festivities herald the passing of a year and welcoming a new one.