quality:corruption
Post-premiership (2014–present)

Singh's premiership officially ended at noon on 17 May 2014. He did not contest the 2014 general election for the 16th Lok Sabha as the prime ministerial candidate. He resigned his post as prime minister after the Bharatiya Janata Party -led National Democratic Alliance won the election. He served as the acting prime minister till 25 May 2014, when Narendra Modi was sworn in as the new prime minister. Singh, along with Congress president Sonia Gandhi, former Presidents A. P. J. Abdul Kalam and Pratibha Patil, and Vice-President Hamid Ansari attended Modi's swearing-in ceremony. Later, Singh shifted to 3 Motilal Nehru Road, New Delhi.

In 2016, it was announced that Singh was to take up a position at Panjab University as the Jawaharlal Nehru Chair, which he eventually did not. Singh retired from the Rajya Sabha in April 2024 and was succeeded by Sonia Gandhi.