Telangana's home minister and election officer Nayani Narasimha Reddy announced that Rao was unanimously elected as the party president, ahead of the party's 16th plenary which began here today.
The party leaders and workers, who were present at the press conference held by Reddy at Telangana Bhavan (TRS headquarters here), raised slogans and distributed sweets as Rao's election was announced.
Rao, who was deputy speaker of the then undivided Andhra Pradesh Legislative Assembly when N Chandrababu Naidu was Chief Minister, quit the TDP and formed the TRS in Hyderabad in 2001 to fight for a separate Telangana state.
Riding on a wave of support in the 2014 Assembly elections, Rao became the first Chief Minister of Telangana on June 2, 2014, the day the state came into existence.
As per the election schedule, the process of filing the nominations for the party president's post began on April 14 and continued till April 18.