The correct answer is (a) Maharashtra.
The Lokayukta is an ombudsman institution that is established in various Indian states to investigate complaints of corruption against public servants. The office of Lokayukta was first established in Maharashtra in 1973. The Lokayukta is appointed by the state government and is a high-ranking official who is independent of the government. The Lokayukta has the power to investigate complaints of corruption, to recommend prosecution of corrupt officials, and to recommend disciplinary action against corrupt officials.
The office of Lokayukta has been established in many Indian states, including Uttar Pradesh, Bihar, and Odisha. However, the office of Lokayukta was first established in Maharashtra in 1973.