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Quetion: Sheikh Mujibur Rahman was then a seventh class student. He played sports, sang and behaved well. Suddenly he contracted beriberi and his heart became weak. He went to Calcutta with his father Sheikh Lutfar Rahman for treatment. The great doctors of Calcutta, Shivpad Bhattacharya, AK Roy Chowdhury and many others showed up and the treatment continued. Thus the treatment lasted for about two years.
Answer: In 1938, while studying in class 8, he contracted beriberi.