Mental agony and harassments

I I am working for a Coop Housing Society in Mumbai. recently since few months some members are having issues with present managing committee. they thing since they pay maintenance regularly they can walk into the society office any time and demand answers to their queries or complaints they have now started letter campaign, they keep sending letters asking for information or some complaint against managing committee. the committee feels since I am 64 years old I will not be able to take the continuous harassments and some thing untoward will happen to me for which they will be answerable. they want undertaking from me stating they should not be accountable please advise what is the way forward to restrain the members, also whether I should provide the undertaking