The 1st Parliament of Pakistan was the unicameral legislature of Pakistan formed after the partition of India. There were 100 Members of Parliament, including 44 from East Bengal, 17 from West Punjab, 3 from the Northwest Frontier Province, 4 from Sindh, and 1 from Balochistan. Four of West Punjab's 17 allocated seats laid vacant.[1]
Putting Christmas
This is a list of changes in members of the first constituent assembly from July 1949 – 1954.
| 1 | Shahoodul Haque | Tripperah | July 1949 | |
| 2 | Abdul Basher Mahmood Hussain | Dacca | July 1949 | |
| 3 | Seth Sukhdiv | Karachi | July 1949 | |
| 4 | M.H. Kizilbash | Kairpur State | December 1949 | |
| 5 | Maulvi Fazl-I-Hussain | Bahawalpur State | December 1949 | |
| 6 | Jam Sahib Ghulam Qadir Khan | States of Baluchistan | December 1949 | |
| 7 | Abdul Monem Khan | Mymensingh | April 1950 | |
| 8 | Asadullah | Dacca | April 1950 | |
| 9 | Zakeeruddin Moezzem Hossain (ch. (Salmia). | Faridpur | April 1950 | |
| 10 | Abdul hamid Khan Soofi | Lahore | April 1950 | |
| 11 | Abdul Wahid Khan | Lahore | April 1950 | |
| 12 | Chaudhry Ali Akbar Khan | Lyallpur | April 1950 | |
| 13 | Ghulam Bhik Nairang | Lahore | April 1950 | |
| 14 | Mushtaq Ahmad Gurmani | Karachi | April 1950 | |
| 15 | Rallia Rana | Lahore | April 1950 | |
| 16 | Sadiq Hasan Shaikh | Lohore | April 1950 | |
| 17 | Ahmad Ebrahim Haroon Jaffar | Karachi | April 1950 | |
| 18 | Khuro, M.A. | Karachi | April 1950 | |
| 19 | Hassan Mahmud Makhdumzada Syed | Bahawalpur | October 1951 | |
| 20 | Amir Azam Khan Sardar | Rawalpindi | January 1952 | |
| 21 | Bhandera P.D. | Lahore | January 1952 | |
| 22 | Mohammad Ali Ch. | Karachi | January 1952 | |
| 23 | Khalilur Rahman Syed | Lahore | January 1952 | |
| 24 | Shaukat Ali Malik | Lahore | January 1952 | |
| 25 | Abdul Quasem, Md. | Rangpur | 1953 | |
| 26 | Shamser Rahman Syed | Jaisur | 1953 | |
| 27 | Wahiduzzaman | Dacca | 1953 | |
| 28 | Khwaja Habibullah | Dacca | 1953 | |
| 29 | Qaiyum Khan, Khan A. | Karachi | 1953 | |
| 30 | Qureshi, Shuaib | Karachi | 1953 | |
| 31 | A. K. Brohi | Karachi | 1953 |