On 7 July 2021, Murugan was sworn in as the Minister of State in the Ministry of Fisheries, Animal Husbandry and Dairying and Ministry of Information and Broadcasting during the Cabinet reshuffle. He contested the 2021 Tamil Nadu assembly elections from Dharapuram and lost to DMK's N. He called the 2020–2021 Indian farmers' protest in Delhi as “false propaganda” in December 2020. Chief Minister of Puducherry V Narayanasamy said Vel yatra is a move by BJP to foment communal disharmony. Murugan attempted to lead the BJP's high voltage Vel Yatra twice in 2020 to build support for Hindutva politics in Tamil Nadu, but was arrested both times. He is was not very close to the leaders of Tamil Nadu BJP but was close with the National BJP leaders. Murugan was supportive of the Citizenship (Amendment) Act, 2019. He is the first from the Arunthathiyar community to hold the post. On 12 March 2020, he was made chief of the BJP Tamil Nadu unit. Murugan claimed that there had been an increase of love jihad in Tamil Nadu in January 2020. ĭuring the agitations against NEET in Tamil Nadu, Murugan claimed that there were ‘external forces’ in the Suicide of S. Murugan later resigned his post in the NCSC before one year of his term's end and met senior BJP leaders. He served as the vice-chairman of the National Commission for Scheduled Castes (NCSC) from 2017 to 2020. He served as the in charge of Kerala for some time. In the 2011 Tamil Nadu Assembly elections, he contested from the Rasipuram seat on a BJP ticket but got only 1800 votes. Murugan served as the national general secretary of the scheduled caste (SC) division of the RSS while he was in the RSS. He is fluent in English, Tamil and Telugu. As a lawyer He has appeared in various cases on behalf of the BJP. He has practiced law for at least 15 years also serving as the Standing Counsel to the Government of India at Madras High Court.
Inspired by Hindutva ideology during his college days in 1997, he joined the Akhil Bharatiya Vidyarthi Parishad, and later the Rashtriya Swayamsevak Sangh.
Ambedkar Law College, Chennai and got his master's degree and PhD at University of Madras. Murugan did his law degree at Tamil Nadu Dr. He was born to L Varudammal, Loganathan on in Konur of Namakkal district of Tamil Nadu. Murugan was born into a Telugu-speaking Arunthathiyar family.