"We will wait till Monday evening, Dec 28, for the Centre's announcement failing which there will be an indefinite bandh in the entire region from Tuesday, Dec 29," Telangana Rashtra Samithi (TRS) Chief K Chandrasekhar Rao said.
The JAC has decided to organise protests in all the villages in the region pressing its demand for creation of a separate state within a stipulated time.
Sporadic incidents of violence were reported from Karimnagar and Medak districts of the region.
A group of demonstrators set fire to TDP office in Vemulavada town and attacked an office of the irrigation project officer in Ramgundam mandal.
Pro-Telangana groups, including student organisations, resorted to hunger strikes at Osmania University and several other areas of Hyderabad city in support of a separate Telangana state.