Telangana Rashtra Samithi

In the aftermath of 2004 Andhra Pradesh Legislative Assembly election, the party won 26 state assembly seats and also won 5 parliament seats. The TRS formed an alliance with Indian National Congress and joined the United Progressive Alliance. In September 2006 the party withdrew support for the central government on the grounds of indecision by the government over the delivery of its electoral promise to create Telangana.[17] On 13 September 2006, Rao triggered a by-election in his Lok Sabha constituency of Karimnagar, claiming provocation from one of the Congress MLAs. He won the subsequent by-election with a strong majority. All TRS MLAs and MPs resigned their positions in April 2008 when the Central government did not meet their demand for a separate state in its latest budget session. The by-election was held on 29 May 2008. In the by-elections, 2008, TRS won 7 out of the 16 assembly segments and 2 out of the 4 loksabha segments that it resigned, a significant defeat for the party. TRS Chief K. Chandrasekhar Rao offered to resign after the by-election losses, but instead remained in office.

In 2009, TRS formed an alliance with TDP and joined the Bharatiya Janata Party-led National Democratic Alliance.[18] The party contested 45 Assembly and 9 Parliament seats to win only 10 Assembly and 2 parliament seats. This was considered another major defeat.

In the 2014 Assembly and National Elections, TRS did not align with NDA or UPA and fought the elections on its own. TRS, which led the campaign for a separate State for more than a decade, emerged victorious by winning 11 of the 17 Lok Sabha seats and 63 of the 119 Assembly seats, and emerged as the party with the largest vote share in Telangana. The TRS' campaign had no other stars except KCR who addressed over 300 public meetings, heli-hopping around and often addressing more than 10 meetings in a single day. The TRS not only retained its north Telangana stronghold but also made inroads in south Telangana, a Congress bastion.[19]

It was only after the bifurcation of Andhra Pradesh, and the creation of separate Telangana state that the party begun to deliver electoral success. TRS won 63 out of 110 seats it contested in the 2014 Assembly elections in the newly formed state, and went on to form the government.[20] K. Chandrashekar Rao, has taken oath as the first Chief Minister of the new state of Telangana on 2 June 2014.

The TRS Government headed by Chief Minister K. Chandrasekhar Rao on 6 September 2018 dissolved the Legislative Assembly, the first after the formation of Telangana, to pave the way for early elections in the state.[21] The party has announced a list of 104 candidates for elections on the same day.[22]

In 2018 Telangana Legislative Assembly election, held the nearly three months after the house dissolution, the TRS party won the assembly elections with massive majority. Won with 88 constituency seats which is more than 70% of 119 seats.[20]

In May 2019, TRS Chief Rao flouted the idea of Federal Front, aiming for a non-Congress and non-BJP government at the centre.[23] The party won 9 out of the contested 17 seats, a reduction of two seats from the 2014 election.[24]