Born in Hyderabad, British India, Baig made his first-class during the 1954–55 Ranji Trophy, against Andhra Pradesh. In his next match against Mysore, he scored 105 and 43 not out. At the end of the tournament, he ended up as his team's second-highest run scorer, scoring 187 runs at an average of 62.33. In the late 1950s, Baig moved to England and went up to University College, Oxford. In 1959, he played 15 first-class matches for the university team. During this time, he scored 221 not out and 87 against Free Foresters and broke Derrick De Saram’s aggregate of 283 runs—208 and 75—to become the highest run scorer for the team in a first-class match. It was during this time India toured England. In the fourth match of the series, Baig was "summoned" to play for India, replacing the injured Vijay Manjrekar. Aged 20 years and 131 days, Baig became the youngest Indian cricketer to score a century on debut when he made 112 in India's second innings. It was also the first century by an Indian debutant outside India. Despite another century from Polly Umrigar, India lost the match. However, Baig retained his place in the team for the final match of the series. He also set the record for becoming the first batsman to score a century in the 4th innings of a test match on test debut. Following the series in England, Baig was included in the Indian squad for the home series against Australia later that year. In the second Test at Kanpur, he scored 19 and 36 runs in both the innings. The match marked India's first Test victory against Australia. In the first innings of the next match at Bombay, he scored 50 and was involved in a crucial 133-run partnership with Nari Contractor. Baig followed that with another half-century in the second innings when he made 58. His half-centuries were helped India secure a draw. During a break in India's second innings, when Baig walked to the pavilion along with Ramnath Kenny, he was kissed on his cheek by a young woman spectator, becoming the first Indian cricketer to be kissed on the field. Vijay Merchant who was commentating then remarked "I wonder where all these enterprising young ladies were when I was scoring my hundreds and two hundreds." A painting called "The Kissing of Abbas Ali Baig", depicting the incident was featured in Salman Rushdie’s novel The Moor's Last Sigh. Baig's success in the 1959/60 season led to him being named as one of Indian Cricket 's five "Cricketers of the Year". In the following season, Baig had an unsuccessful outing against Pakistan, managing to score just 34 runs in four innings. This led to him being dropped from the side for the subsequent series. During this time, it was said he received hate mail for under-performing against fellow Muslims. However, he was impressive in the domestic circuit, scoring heavily in the Ranji and Duleep Trophy tournaments. In 1966, he was included in the team for the home series against West Indies. Baig scored 48 runs in two of the Tests he played in the series. He was dropped again and never played Test cricket again. He almost made it to the squad for the 1971 tour of West Indies before being dropped. He was selected in the Indian team that toured England in 1971. However, he was not included in the playing eleven for any of the Tests; Ashok Mankad was preferred to Baig. Baig's three younger brothers—Murtuza Baig, Mazhar Baig, and Mujtaba Baig—all played professional cricket. Murtuza played first-class cricket for Hyderabad but was less successful than Abbas.