[1] Abdus Sobhan Chowdhury was a son of a zamindar from Tangail District's Delduar.
[1] Chowdhury married Tohurunessa, the daughter of Shobdel Ali, zamindar of Bogra.
[1] Due to the premature death of Tohurunessa's only brother, Chowdhury became the zamindar of Bogra.
[1] On 20 March 1894, Chowdhury was conferred the title of Nawab by the British Raj for his beneficent contributions to society.
[1] Chowdhury purchased a 3.75 acre property on the bank of Karatoya River from one Abot, a British indigo industrialist.