Which one of the following statements about Dr. Manmohan Singh is not

Which one of the following statements about Dr. Manmohan Singh is not correct?

Dr. Manmohan Singh is the first Indian Prime Minister to return to power after completing a full five-year term.
He was the Union Minister of Finance during the tenure of then-Prime Minister P.V. Narasimha Rao.
He was the Governor of Reserve Bank of India and thereafter the Deputy Chairman of Planning Commission.
From 1998 to 2004, he was the Leader of the Opposition in the Rajya Sabha.
This question was previously asked in
UPSC CAPF – 2009
Statement (A) about Dr. Manmohan Singh is not correct.
– Statement A is incorrect: Dr. Manmohan Singh served two consecutive terms as Prime Minister (2004-2009 and 2009-2014), thus completing a full five-year term and returning to power. However, he was not the *first* Indian Prime Minister to achieve this. Jawaharlal Nehru also completed full five-year terms (e.g., 1952-1957, 1957-1962) and returned to power.
– Statement B is correct: Dr. Manmohan Singh served as the Union Minister of Finance under Prime Minister P.V. Narasimha Rao from 1991 to 1996, during which he was instrumental in India’s economic reforms.
– Statement C is correct: Before becoming Finance Minister, he served as the Governor of the Reserve Bank of India (1982-1985) and subsequently as the Deputy Chairman of the Planning Commission (1985-1987).
– Statement D is correct: He was indeed the Leader of the Opposition in the Rajya Sabha from 1998 to 2004.
– Dr. Manmohan Singh is an economist by profession and is widely credited with liberalizing the Indian economy during his tenure as Finance Minister.
– He became Prime Minister in 2004, leading the United Progressive Alliance (UPA) government for two terms.