Dr. Rattan Singh Ajnala was born to Shri Sardar Singh and Smt. Kartar Kaur on 16th January 1944 at Tanda of the undivided India, which is now in Pakistan. He belongs to Lubana Community.
Dr. Rattan Singh Ajnala is well known politician and one of the senior MPs of punjab. He represents Shiromani Akali Dal from Khadoor Sahib Lok Sabha constituency, Tarn Taran, Punjab. Dr.Rattan Singh Ajnala is doctor by profession, he did his M.B.B.S degree from punjab medical college. before joining politics he did a lot of social work in border areas of punjab Dr. Rattan Singh Ajnala has also remained as the District President of the Shiromani Akali Dal, Amritsar.
Dr. Rattan Singh Ajnala is married to Mrs. Avtar Kaur who is also a doctor by profession.They have two sons.