Rao said he would join the people's stir in support of united Andhra Pradesh by getting his resignation accepted.
Meanwhile, leaders, representing government employees protesting against proposed division of the state, today released a poster in connection with the public meeting to be organised by them here on September 7.
The leaders said they would approach court if police refused them permission to hold the rally.
Meanwhile, protests continued across Coastal Andhra and Rayalaseema regions today against the proposed division of the state.
Centre gave its nod to the formation of separate Telangana state on July 30.