either of the teams as it ended in a goalless draw. It was an unofficial derby at that time. In 1924, the club won the Second Division and gained promotion to the IFA First Division after finishing in second place to Cameroons 'B'. As Cameroons 'A' team was already in the First Division the 'B' team could not gain promotion to the same league. East Bengal was next in line for promotion. However, more controversy arose since the IFA allowed only two Indian-based clubs in the IFA First Division at a time (at that time, the IFA was a British organization). This rule had previously deprived clubs like "Kumartuli" and "Town" from entering the First Division. During a governing body meeting of the IFA, the nine British clubs approved East Bengal's promotion to the First Division. Ironically, the two Indian clubs, Mohun Bagan and Aryan, opposed it. East Bengal's efforts led to the abolition of the oppressive Indian club limit rule. In 1925, East Bengal made its IFA First Division debut, and Mona Dutta became the maiden goalscorer for the club in the league. On 28 May 1925, the first official Kolkata Derby was played, where Nepal Chakraborty scored the only goal for East Bengal. 1940s – 1970s It took the club till 1942 to win their first IFA First Division title. East Bengal won their first IFA Shield in 1943. They then achieved the double in 1945 by winning both the Calcutta Football League (CFL) and IFA Shield. In 1948, East Bengal became the first team to defeat a foreign club on home soil. They won 2–0 against the visiting Chinese Olympic XI. East Bengal won their first treble in the 1949 season, by winning the Calcutta League, the IFA Shield and the Rovers Cup, becoming the first Indian club to do so. The club went on to win the 1949 Rovers Cup and the Durand Cup in 1951. That period saw the rise of the Pancha Pandavas. The five players, P. B. A. Saleh, Ahmed Khan, P. Venkatesh, Appa Rao, and K. P. Dhanaraj played together at the club from 1949 to 1953. The club also won its first DCM Trophy in 1950. The club also won three straight IFA Shields in 1949, 1950, and 1951. The English Football Association 1951–52 annual almanac adjudged East Bengal as the best club in Asia. On being recommended by the president