Utkal Sammilani was founded by Madhusudan Das. Its first meeting was held in 1903 and included 62 "permanent members". The organization's first objective was to campaign for the unification of the state of Orissa.
A conference was held in 1920 in Chakradharpur and the organization decided to join the non-cooperation movement that had recently been endorsed by the Indian National Congress. It elected a new president, Basanta Kumar Panigrahi, in 2002.
In 2010, Utkal Samilani, requested that the Indian government grant "classical language status" to Oriya and take appropriate actions to preserve the interests of the people who speak Oriya but reside outside their home state. Utkal Sammilani was a key player in the transformation of the state of Orissa to its modern-day status as Odisha and it opposed Andhra Pradesh’s Polavaram project in 2010.
- Staff Reporter (24 October 2009). "Central Nod to Rename Orissa Welcome". Hindustani Times (New Delhi).
- Unknown author. "Death Anniversary of Utkal Gaurab Madhusudan Das" (PDF). Odisha Government. Retrieved 17 September 2013.
- Samal, Joy K. & Nayak, Pradip Kumar (1996). Makers of Modern Orrissa. p. 48.
- Padhy, K.S. (2011). Indian Political Thought. PHI Learning Private Ltd. p. 287.
- Mahapatra, Jarihar (2011). My Life, My work. Allied Publishers Private. p. 220.
- Pattanayak, Subhas Chandra (30 November 2002). "New Leader of Utkal Sammilani". Orrisa Matters. Retrieved 17 September 2013.
- Staff Reporter (7 December 2010). "Utkal Sammilani's demand". The Hindu.
- "Protest Against". The Hindu. 15 September 2010.