Why did Karunanidhi's burial get mired in legal row?

Why did Karunanidhi's burial get mired in legal row? 

 M Karunanidhi, DMK chief and former Tamil Nadu chief minister, died on Tuesday evening after a prolonged illness, the Kauveri Hospital, where he was admitted, said. "With deep anguish, we announce the demise of our beloved Kalaignar M Karunanidhi at 6.10 pm on August 7, the hospital said. Karunanidhi was admitted to the Kauveri Hospital hospital on July 28 following a dip in his blood pressure and he was under treatment in the Intensive Care Unit ever since.

Lawyers for DMK reach the residence of Madras High Court acting Chief Justice Huluvadi G. Ramesh who had agreed to hear today a case against denial of burial land by Tamil Nadu Govt at Marina beach for Karunanidhi