The test report of Kolkata’s Central laboratory has been submitted to the District Magistrate Vimal Kumar Sharma, who in turn will forward it to the Commissioner to seek his approval to initiate legal action against Mother Dairy, the official said.Meanwhile, marketing head of Mother Dairy, Sandeep Ghosh said that they were yet to receive re-test report of the Kolkata-based Central laboratory.As there were contradictions between the two test reports, Mother Dairy will approach appropriate legal forum to challenge them, Ghosh added.