Andhra Pradesh has a Vidhan Sabha (legislative assembly, lower house) of 294 seats, and a Vidhan Parishad (legislative council, upper house) of 90 members. 31 members are elected from local bodies, 31 members are elected from the assembly, eight members are elected from teachers, eight members are elected from graduates, and 12 members are nominated by the Governor. In the Parliament of India Andhra Pradesh has 18 in the Rajya Sabha, the Upper House, and 42 in the Lok Sabha, the Lower House.
Andhra Pradesh had a series of governments headed by Indian National Congress (INC) Party until 1982. N. Chandrababu Naidu held the record for the longest serving chief minister (1995 to 2004). P. V. Narasimha Rao served as the chief minister of the state from 1971 to 1973, and went on to become the Prime Minister of India in 1991. The first Chief Minister of Andhra Pradesh was Neelam Sanjiva Reddy, who later served as President of India. The notable chief ministers of the state are Tanguturi Prakasam, Damodaram Sanjivayya, Kasu Brahmananda Reddy, P. V. Narasimha Rao, Jalagam Vengala Rao, Marri Chenna Reddy, Tanguturi Anjaiah, Bhavanam Venkatarami Reddy, Kotla Vijaya Bhaskara Reddy, N. T. Rama Rao, Nadendla Bhaskara Rao, Nedurumalli Janardhana Reddy, N.Chandrababu Naidu, Y. S. Rajasekhara Reddy, Konijeti Rosaiah and N. Kiran Kumar Reddy .
Until 1962, the CPI, along with socialist parties, played an important role as opposition parties. Parties namely Praja Socialist Party and Krishi Lok Party played important role in 1950's. In the 1967 state assembly elections all socialist parties were eliminated and CPI lost opposition party status. N.G. Ranga's Swatantra Party became the Opposition Party. They also failed to hold control later and became defunct. In 1978 Jalagam Vengal Rao and Kasu Brahmananda Reddy formed the Reddy Congress and contested against Congress (I) but lost.
In 1983 the Telugu Desam Party (TDP) won the State elections and N.T. Rama Rao (NTR) became the chief minister of the state for the first time. This broke the long time single party monopoly enjoyed by the INC from 1956 until 1982. A few months after the election, Nadendla Bhaskara Rao usurped power when NTR was away in the United States for medical treatment. After coming back, NTR campaigned for a comeback by demonstrating the support of the majority of the elected MLAs. The governorThakur Ram Lal was ousted by Indira Gandhi and in his place she appointed Shankar Dayal Sharma. NTR was reinstated as Chief Minister. Within a month NTR recommended the dissolution of the assembly and called for fresh elections. Gandhi was assassinated on 31 October 1984 by her Sikh bodyguard and Rajiv Gandhi was made Prime Minister by President Giani Zail Singh. In the ensuing elections for Lok Sabha and the AP Assembly, the Telugu Desam Party won in Andhra Pradesh and NTR came back to power.
The 1989 elections ended the rule of NTR, with the INC party returning to power with Marri Chenna Reddy at the helm. He was replaced by Janardhan Reddy in 1990, who was replaced by Kotla Vijaya Bhaskara Reddy in 1992.
In 1994, Andhra Pradesh gave a mandate to the Telugu Desam Party again, and NTR became the chief minister again. Nara Chandrababu Naidu, the son-in-law of NTR, usurped power with the backing of a majority of the MLAs. The Telugu Desam Party won both the assembly and Lok Sabha election in 1999 under the leadership of Chandrababu Naidu. There was an assassination attempt on Naidu in 2003 in Tirupathi; he survived the attack. In the ensuing elections the party lost power to a resurgent Congress Party and its allies. Congress on its own won 185 seats in 294 assembly, and with its allies won 226 seats; Y. S. Rajasekhar Reddy became the Chief Minister.
Y. S. Rajasekhar Reddy became the CM again by fending off the Praja Rajyam Party and a major alliance of TDP, TRS, CPI and CPM. He died on 2 September 2009 in a helicopter crash. Konijeti Rosaiah, a senior statesman and former State Finance Minister, became the Chief Minister of AP on 3 September 2009. On 24 November 2010, Rosaiah submitted his resignation on the grounds of increased work pressure. Nallari Kiran Kumar Reddy Reddy was sworn in as the new CM on the following day.