Ahad Khan made his first-class debut in December 1962. In his third match, playing for Railways against Quetta in a quarter-final of the 1962-63 Ayub Trophy, he took 5 for 29 and 4 for 32 in an innings victory. He began the 1964-65 season by taking 5 for 122 and 3 for 35 in a friendly match for Railways against a strong Pakistan XI. In his next match, in the Ayub Trophy against Dera Ismail Khan, after not bowling in the first innings he opened the bowling in the second innings and took 9 for 7 in 6.3 overs; the other batsman was run out. A few days later he took his best match figures of 11 for 70 against Lahore Education Board. A few days after that, in a quarter-final of the Ayub Trophy against Public Works Department, he took 6 for 72 and 2 for 57. He finished the season with 42 wickets at an average of 15.88. In 1965-66 he took 6 for 33 against Peshawar, but played irregularly after that until the 1969-70 season, when he took 32 wickets at an average of only 8.18. He took 4 for 4 and 2 for 9 against Peshawar in the Quaid-i-Azam Trophy, and 3 for 9 and 6 for 17 against National Bank in the Ayub Trophy.
1970s
Khan played a major part in Railways' success in 1972-73, when they won the Quaid-i-Azam Trophy, and in 1973-74, when they won both the Quaid-i-Azam Trophy and the Patron's Trophy. In the Quaid-i-Azam Trophy in 1972-73 he took 6 for 27 and 3 for 18 against North-West Frontier Province, then in the final against Sind he took 7 for 41 and 2 for 46 in an innings victory. In the Patron's Trophy in 1973-74 he took 7 for 49 in the semi-final against Pakistan Universities in a match restricted by rain to one innings each, then a week later in the final against Pakistan International Airlines A he took 3 for 55 and 5 for 29 to give Railways victory by 127 runs. Later in the season, in the final of the Quaid-i-Azam Trophy against Sind he took 3 for 47 and 3 for 29 and Railways won by 274 runs. He finished his most successful season with 50 wickets at 19.76. After that his form deserted him. He took eight wickets in eight matches in 1974-75, then did not play again until 1980-81, when he took six wickets in his final two matches. He usually batted at number 10 or 11. His highest score was 40 against Sargodha in 1963-64, when he took part in a last-wicket partnership of 86.
