Ajinder Kaur was born in 1951in Jalandhar, Punjab, India.
She was educated at Government Girls Senior Secondary School, Nehru Garden, Jalandhar.
She started playing hockey at School where Gurcharan Singh Bodhi, one of India's top hockey coaches, had a hockey training centre. Under his guidance and encouragement, she developed into an outstanding hockey player. She regards Bodhi as her sporting idol and says he had the most influence on her hockey career.
She played and Captained Lyallpur Khalsa College for Women, Jalandhar hockey team from 1967 to 1970
She was selected for the National Team whilst at the college and earned her first international cap, aged 16, when she was selected to represent India against Australia on 6 September 1967 in New Delhi.
Following her international appearance, she was selected for her State team, Punjab. She played for Punjab from 1967 to 1978, winning the National Championships nine times. She was the captain of the winning team in 1972.
The following year (1968) she represented India at the 1st Asian Women Hockey Championship in 1968 in New Delhi.
She played for Guru Nanak Dev University in 1970.
She was a member of Indian team that won Silver Jubilee Tournament in Japan in 1970.
She played and Captained the Punjab University Hockey team from 1971 to 1973, winning the All India Inter-University Championship on all three occasions.
She represented India at Hockey World Championship in New Zealand in 1971.
She was appointed as India's Captain at the first Hockey World Cup in Madelieu, France in 1974 where India finished fourth. India finished top of their pool (Belgium; Holland; India; Mexico; Spain) and had defeated the eventual winners, Holland, in their pool match. (This is India's best position at World Cup todate - 11 July 2022).
That year she was selected for Asia X1.
She was awarded Arjuna Award in 1974.
She was India's Captain at the World Championship in Edinburgh in 1975.
She Captained the Indian team that won the Begum Azad Rasool international tournament held in Madras in 1975. (This is the only time India won an international tournament todate - 25 June 2022).
Honoured as the best sports women of the year 1975 by the Chandigarh Journalist Association; best sports women of the year 1976 by Delhi Journalists Association and best sports women of the year 1978 by the Jabalpur Journalist Association.
Represented India at the third World Cup in Madrid, Spain in 1978.
She retired from playing international hockey after the World Cup in 1978, having represented India for eleven years. and took up coaching.
She worked in Punjab Education Department as a coach from 1975 - 1981.
She worked as lecturer in Physical Education at Govt Model Senior Secondary School, Chandigarh from December 1990 - December 2003.
Awarded The Maharaja Ranjit Singh award by Government of Punjab.
She now resides in Derby, UK.