[1] He belonged to a Muslim family that traces its descent back to the Sufi saint Malik Ibrahim Bayu, also known as Mallick caste.
He formed the Muslim Independent Party in 1936 with the help of Maulana Abul Mohasin Sajjad (Founder of Imarat-e- Sharia, Bihar) and became its founding President.
Kazi Ahmad Hussain, who was Nazim of Imarat-e-Sharia at that time and was also an important leader of Muslim Independent Party, had mixed feelings about the formation of the government.
His view was that forming a government without the participation of a party which represented the second largest constituency of the country could lead to a serious divide between the two communities which became a reality in 1947 with the partition of India.
Bihar Band (Hartal) and several agitators were detained in front of his residence ("Dar-ul-Mallik") on Fraser Road in Patna on the second day of his tenure.
Then youth leader Jayaprakash Narayan harshly criticized Barrister Yunus's acceptance of the governor's invitation to form the government.
After the partition, he played an active part in the movement to amend the Custodian Ordinance and worked shoulder-to-shoulder with Jamiat-e-Ulema on this issue.
The next day, after Maulana's refusal, Mahamaya Prasad accepted the nomination from the party and joined the legislative council.
He was also the founding President of the All India Mail-Milap Association which was formed with the objective of achieving Hindu-Muslim unity on a social level, beyond political Interest and limitations.
His eldest son, Mohammad Yaqub Yunus, inherited his father's judicial heritage while staying out of politics, died in 1947 at the age of 40 while serving as a standing counsel for the Government of Bihar.
Most of his political and business legacy was passed down to his younger son, Mohammad Yaqub Yunus (founding president of Bihar Muslim Majlis Mushawarat).
In addition to serving as standing counsel for the Government of Bihar in the Patna High Court, Muhammad Yasin Yunus, his second son, served as his father's political secretary, particularly during the key period of the Muslim Independent Party's formation and during his father's tenure as Chief Minister.
Mohammad Yaqub Yunus, a Patna High Court advocate, was a younger son who founded the All India Muslim Majlis-e- Mushawarat in 1967.
Yunus moved to England in 1903 to join the Society of the Middle Temple, and on January 26, 1906, he received his bar admission.
After just a brief period of practice in England, he returned to India in April 1906, and at the age of 22, he enrolled as an advocate in the Calcutta High Court Bar.
On October 5, 1924, he married his second wife, the eldest daughter of the late Habibur Rahman of Irki, Jehanabad, Gaya, who was working as an assistant civil surgeon at the time.
The last known 'Rajkiya Samaroh' was organised to commemorate Mohammad Yunus on May 4, 2023 at Sri Krishna Memorial Hall, Patna, Bihar.