India, May 19 -- Federalism has been a fault line of Indian politics and the DMK, which grew out of a mass movement that emphasised regional and linguistic identity, has been an advocate of the federal rights guaranteed in the Indian Constitution. It is from this ground that Tamil Nadu Chief Minister MK Stalin has written to CMs of eight states with non-BJP governments to "evolve a coordinated legal strategy" and "present a united front" in light of the Presidential reference on the landmark verdict that the Supreme Court delivered on April 8, setting deadlines for the President and governors to clear the bills passed by the state legislatures. On May 13, President Droupadi Murmu raised 14 questions before the Supreme Court on the constit...