The institution's medical superintendent and vice-principal M A Rashid said five infants died on the first day, seven on the second day and three in the past 24 hours.
The age of all the 15 deceased infants was between one day and three months, he said.
The newborns, brought from different primary health centres of Malda district in critical condition, suffered from low weight, breathing problems and malnutrition, CMOH (Malda) Dilip Kumar Mondal said.
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