Rahim Bakhsh remained the Regent (President) of the State during the minority of the young Nawab, from 1907 to 1924. He was to become a prominent political leader representing the princely states of greater India, and did significant work for the development of Bahawalpur State. He also signed several treaties with the British Government and neighboring Rajputana States for the development of railroads, canals, and irrigation projects. While working with Dunlopsmith, Rahim Bakhsh became known to Sir John Perronet (JP) Thompson, ADC to Lord Minto,Viceroy of India from 1905 to 1910. Rahim Bakhsh was considered one of the most honest and honorable leaders from the princely states, and was chosen by the Viceroy to be part of the Reform Committee in 1919. He received the honor of Khan Bahadur in 1909, and was knighted (KCIE) in 1913.
During the Indian Constitutional Reforms of 1919, Sir Rahim Bakhsh worked with several prominent social and political leaders, including Tej Bahadar Sapru, Sir Babu Surrendranath Banerjea of the Bengal, Sir JP Thompson, the Hon. Srinivasa Sastri, and other notable personalities. He established political relations with other princely states of Punjab and Rajputana, including Nabha, Patiala, Jind, Kapurthala, Faridkotla, Bikaner, and Malwar. He attended both the 1903 and 1911 Durbars, which were held for the Coronations of Edward VII and George V.
After his retirement from Bahawalpur State, Sir Rahim Bakhsh was invited in the All India Muslim Conference of 1928 to 1935, as member of the Punjab Legislative Committee. He worked with several prominent Muslim leaders, including His Highness Sir Aga Khan (President of the Conference in 1928), Dr. Sir Mohammed Iqbal (Poet, Allama, President, 1932), Sir Sikandar Hayat Khan, Malik Phiroze Khan Noon, Sir Abdul Qadir, Ahmed Yar Khan Daultana, Sir Mohammed Shafi, and Nawab Sir Ahmad Said Khan of Chattari (President, 1934), among others.
See Chronology of Sir Rahim Bakhsh