Chennai, Oct. 6 -- The Tamil Nadu government on Sunday issued a notice to pharmaceutical company, Sresan, in Kancheepuram district asking why their drug license should not be completely cancelled after samples of a cough syrup (Coldrif) they manufactured showed high concentration of toxic chemicals and is believed to have led to the deaths of 11 children in Madhya Pradesh.

Tamil Nadu and several other states on October 4 banned the drug after it was found to be contaminated. The notice was preceded by a "stop production" order issued by the government to the pharmaceutical company on October 3. The company was closed. "As a follow-up action, a memo has been issued asking for an explanation as to why the drug licenses of Sresan Pharmaceut...