Narendra Singh Tomar have two sons and a daughter. He was nicknamed as "Munna Bhaiya" by Babulal Gaur. He has taken over as Union Minister (Cabinet rank) of Steel, Mines, Labour and Employment on 27 May 2014 in the cabinet headed by Narendra Modi, Prime Minister. He was administered the oath of office and sworn in as Union Minister on 26 May 2014 by Pranab Mukherjee, the President of India. On 5 July 2016, during the second cabinet reshuffle of the Narendra Modi ministry, Chaudhary Birender Singh replaced Narendra Singh Tomar as the Steel Minister and Narendra Singh Tomar replaced Chaudhary Birender Singh
2014 Indian general election in Tamil Nadu with left parties. AIADMK party members declared herself as the Prime Minister candidate despite rumours that she might support Narendra Modi. On 24 February, Jayalalitha announced candidates for all the 39 constituencies of Tamil Nadu. The BJP under PM candidate Narendra Modi have formed an alliance with MDMK, PMK, DMDK, IJK, KMDK and seats were allotted on 20 March 2014. Dravida Munnetra Kazhagam named its alliance as Democratic Progressive Alliance. It formed alliance with VCK, MMK, IUML and Puthiya Tamizhagam. The INC under the leadership of Rahul Gandhi stated that they will decide on a PM candidate after the election.