Mahant Bhaskar Das, one of the oldest litigants in the Ram Janmabhoomi-Babri Masjid dispute and the president of Nirmohi Akhara, died today, two days after suffering a heart attack. He was 90, Pujari Ram Das, his successor to the Akhara, said.The Mahant, who was the oldest litigant from the Hindu side, had suffered a heart attack late on Thursday evening and was admitted to a private hospital here. He died this morning, he said.