Pattali Makkal Katchi president Anbumani Ramadoss alleged on Wednesday that the Dravida Munnetra Kazhagam, the ruling party in Tamil Nadu, has a cordial relationship with the BJP-led Union government “behind the screen”. Addressing the gathering, Mr. Anbumani said despite the 69 percent reservation in Tamil Nadu “being under threat”, the State government has not conducted a caste census. Why is …