Government
Type: Federal republic.
Independence: August 15, 1947.
Constitution: January 26, 1950.
Branches: Executive--president (chief of state), prime minister (head of government), Council of Ministers (cabinet). Legislative--bicameral parliament (Rajya Sabha or Council of States and Lok Sabha or House of the People). Judicial--Supreme Court.
Political parties: Bharatiya Janata Party, Congress (I), Janata Dal (United), Communist Party of India, Communist Party of India-Marxist, and numerous regional and small national parties.
Political subdivisions: 28 states,* 7 union territories.
Suffrage: Universal over 18.

Government of India
According to its Constitution, India is a "sovereign, socialist, secular, democratic republic." Like the United States, India has a federal form of government. However, the central government in India has greater power in relation to its states, and its central government is patterned after the British parliamentary system.

The government exercises its broad administrative powers in the name of the president, whose duties are largely ceremonial. The president and vice president are elected indirectly for 5-year terms by a special electoral college. Their terms are staggered, and the vice president does not automatically become president following the death or removal from office of the president.

Real national executive power is centered in the Council of Ministers (cabinet), led by the prime minister. The president appoints the prime minister, who is designated by legislators of the political party or coalition commanding a parliamentary majority. The president then appoints subordinate ministers on the advice of the prime minister.

India's bicameral parliament consists of the Rajya Sabha (Council of States) and the Lok Sabha (House of the People). The Council of Ministers is responsible to the Lok Sabha.

The legislatures of the states and union territories elect 233 members to the Rajya Sabha, and the president appoints another 12. The members of the Rajya Sabha serve 6-year terms, with one-third up for election every 2 years. The Lok Sabha consists of 545 members and serve 5-year terms; 543 are directly elected, and two are appointed.

India's independent judicial system began under the British, and its concepts and procedures resemble those of Anglo-Saxon countries. The Supreme Court consists of a chief justice and 25 other justices, all appointed by the president on the advice of the prime minister.

India has 28 states* and 7 union territories. At the state level, some of the legislatures are bicameral, patterned after the two houses of the national parliament. The states' chief ministers are responsible to the legislatures in the same way the prime minister is responsible to parliament.

Each state also has a presidentially appointed governor who may assume certain broad powers when directed by the central government. The central government exerts greater control over the union territories than over the states, although some territories have gained more power to administer their own affairs. Local governments in India have less autonomy than their counterparts in the United States. Some states are trying to revitalize the traditional village councils, or panchayats, which aim to promote popular democratic participation at the village level, where much of the population still lives.
source: http://www.state.gov