The club's assistant secretary Bose and director-cum- finance secretary Dutta put in their papers on Monday afternoon and later called a media conference at the Calcutta Sports Journalists' Club to announce their decision.
"This is not an overnight decision. We have been thinking about it for about four years now. We have not found a solution and the situation has worsened. No one is indispensable," Bose told reporters.
"We have recently pruned the squad to 25 and they will leave for Bhubaneswar on March 19 for practice. They (Anjan Mitra and his office bearers) have a lot of time left to make a champion squad for next season," he added.
When contacted, Mitra said he is yet to receive anything in writing and therefore cannot react.
"I've not yet got the letter. I can comment only after that. I heard they held a press conference announcing their resignation," Mitra told IANS over phone.
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