[1][2] He is serving as the member of the Jharkhand Legislative Assembly from the Dumri Assembly constituency on the symbol of Jharkhand Loktantrik Krantikari Morcha, a newly formed political party for safeguarding Jharkhandi local languages and cultural heritage.

[3][4][5][6] Mahato is the founder of Jharkhand Loktantrik Krantikari Morcha, formerly known as Jharkhandi Bhasha Khatiyan Sangharsh Samiti.

[13][14] Mahato hails from a family deeply connected to Jharkhand's statehood movement.

[16][10][17] He completed Master of Arts in English from P. K. Roy Memorial College, Dhanbad, under Vinoba Bhave University in 2017.

[18] Jairam Kumar Mahato fought 2024 Indian general election from Giridih Lok Sabha constituency as an independent candidate at the age of 29 years.