India, Oct. 13 -- The manufacturing licence of Tamil Nadu-based Sresan Pharmaceuticals has been fully revoked and the company ordered to shut down, the state government said on Monday, following a damning investigation into the adulterated cough syrup Coldrif that is linked to the deaths of several children in Madhya Pradesh.

The crackdown came after a series of alarming developments in the case in which lab tests found the use of diethylene glycol (DEG) - a toxic chemical historically associated with mass poisoning incidents.

Health authorities in Madhya Pradesh report the deaths of multiple children, with initial suspicions pointing to a contaminated batch of Coldrif, a cough syrup commonly prescribed for pediatric use, marketed by Sr...