Maharashtra State PSC Model Paper 1

The correct answer is the Citizenship act 1955.

• The Citizenship Act 1955 lays down rules for the acquisition and determination of Indian citizenship. Enacted in 1955, this act also enables people who were once citizens of India. 
• But are now citizens of another country, among others, to apply for an Overseas Citizen of India Card. 
• The Citizenship Act 1955 was amended  six  times to date — in the year 1986, 1992, 2003, 2005, 2015, and 2019.