A source with knowledge of the matter said the policy change could mean increased oversight of India's $41 billion pharmaceutical industry, which is the world's largest supplier of generic medicines. Increased testing of cough syrups as well as of raw materials for drugs in general is one of the steps being considered, said the source. India has acted against a second Indian company whose cough syrups were linked to the deaths of 19 kids in Uzbekistan, including the arrest of three of its employees. A source with knowledge of the matter said the policy change could mean increased oversight of India's $41 billion pharmaceutical industry, which is the world's largest supplier of generic medicines. India has acted against a second Indian company whose cough syrups were linked to the deaths of 19 kids in Uzbekistan, including the arrest of three of its employees.