Change of Committee who will fight case against old committee pertaining with committee functioning

There is a current Case going on to the outgoing Committee now with the change in the Committe members the outgoing comittee is forcing the new committee to handle the case. The Case filed by an old disgruntled member with the functioning of the then commitee. Can the old committee secretary now wash his hand free of this case & is the new committee obliged to continue the case. Your inputs will be highly appreciated.

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