Cadres of the Desiya Murpokku Dravida Kazhagam submitted a petition to Collector here on Monday alleging that industrial effluents on SIPCOT premises were posing a grave threat to the health of the people.P. Ponraj, district secretary, DMDK, alleged that the agriculture lands available in the vicinity would not be conducive for growing crops and the farmers, who largely depend on their field, had to...