In 1971, Liaquat Ali Khan was working in Pakistan (then West Pakistan). When the war of liberation started, he came to Bangladesh at the end of May saying that his father was ill. A few days later he went to India and joined the war of liberation. Shortly afterwards he was promoted to the rank of Adjutant of the 1st East Bengal Regiment of the regular forces. In 1975, in the event of a counter-coup, compulsory retirement from the Bangladesh Air Force was granted. He later worked in the Middle East. He then worked as a pilot in Bangladesh Biman.