India, Oct. 13 -- The Enforcement Directorate (ED) on Monday launched raids in Chennai in connection with a money laundering investigation related to Coldrif cough syrup, linked to the deaths of children in Madhya Pradesh, people familiar with the development said.

The raids under the prevention of money laundering act (PMLA) were carried out at seven locations in Chennai, including the residences of top officials of Tamil Nadu drug control office.

The owner, G Ranganathan, of Tamil Nadu-based Sresan Pharma Company was arrested by Madhya Pradesh and Tamil Nadu police last week while two state drug inspectors were suspended by the Tamil Nadu government.

The Tamil Nadu government, which had ordered the closure of the firm after the spuri...