According to Indian Constitution, India is-

According to the Indian Constitution, India is described as a "Sovereign, Socialist, Secular, Democratic Republic." Sovereign: India is an independent nation, free from external control. Socialist: The term was added by the 42nd Amendment Act in 1976, reflecting the commitment to social and economic equality. Secular: India has no official state religion and treats all religions equally. Democratic: The government is elected by the people through a system of universal adult suffrage. Republic: The head of state is elected, not a hereditary monarch. This description can be found in the Preamble to the Indian Constitution.