B.R Ambedkar is the personality who founded the Independent Labour Party and published Mooknayak. B.R Ambedkar was an Indian jurist, economist, and social reformer who played a significant role in the formation of modern India.

The Independent Labour Party:
- B.R Ambedkar founded the Independent Labour Party (ILP) in 1936. The ILP aimed to represent the interests of the working class and fight for their rights and social justice.
- The party was established to address the issues faced by the laborers and workers in India, including their economic and social conditions.
- B.R Ambedkar believed in the importance of political representation for the working class and founded the ILP as a platform for their voices to be heard.

Mooknayak:
- Mooknayak, which translates to "Leader of the Silent," was a publication started by B.R Ambedkar in 1920.
- It served as a platform for Ambedkar to express his views on social, political, and economic issues, particularly those affecting the lower caste and marginalized communities.
- Through Mooknayak, Ambedkar advocated for the rights of Dalits (formerly known as untouchables) and challenged the prevailing social hierarchy and discrimination.
- The publication played a crucial role in raising awareness about the issues faced by the Dalit community and promoting social equality and justice.

B.R Ambedkar's Contributions:
- B.R Ambedkar is widely regarded as the chief architect of the Indian Constitution and was instrumental in drafting and shaping its provisions.
- He fought against social discrimination and worked towards the empowerment of marginalized communities, particularly the Dalits.
- Ambedkar played a pivotal role in the abolition of untouchability and the promotion of social justice in India.
- He also worked towards women's rights, labor rights, and education reforms.
- Ambedkar's efforts and contributions have had a lasting impact on Indian society, and he is revered as a champion of social equality and justice.

In conclusion, B.R Ambedkar founded the Independent Labour Party to represent the working class and published Mooknayak to advocate for the rights of marginalized communities, particularly the Dalits. His contributions as a social reformer and his role in drafting the Indian Constitution make him a significant figure in Indian history.