The Second Manmohan Singh ministry came into existence after the general election in 2009. The results of the election were announced on 16 May 2009 and led to the formation of the 15th Lok Sabha. Manmohan Singh took the oath as the 13th Prime Minister of India on 22 May 2009, followed by the oath-taking ceremonies of the Council of Ministers in two phases. They remained in office until next election. This ministry was the second-largest Union Council of Ministers in India after Third Vajpayee ministry until it was surpassed by the Third Modi ministry in 2024.
The new UPA government included 79 members, 78 members in the cabinet plus Prime Minister Manmohan Singh. The first 20 cabinet ministers including Manmohan Singh, swore in on 22 May 2009, while the other 59 cabinet members swore in on 28 May 2009.
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The approval ratings for the government from 2008 to 2013, according to Gallup polling, are given below.