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April
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4- April-1938	A. M. Chakrabarty was born in Sainthia at West Bengal. He found that under the optimum conditions of time, temperature and nutrients the Hydrocarbon-eating ""qualities'' of four diffrent strains of bacteria could be transferred into one. He also showed that this super-strain of bacteria reproduces itself.
23- April-1938	Viceroy Lord Linlithgow opens the hydro-electric scheme at Malakand.