Harrasment of my father due to his position as secretary

Dear Sir, As per the subject, I would like to inform you that my father is the secretary of our housing society and they have assumed office on 2012, July and now their term has come to an end and new election process has already is on phase. Now the main story is, it is found that on audited report that an enormous figure of around Rs. 8 Lakhs is showing as Cash in Hand balance. This calculations are based on 2012-13 and 2012-14 audited report. It is highly suspected that this illegal cash flows from banks has been initiated by treasurer himself as during that time his movements were highly suspicious. Suppose if a pump repair cost is 5000/-, he have withdrew 20,000/- and made payment vouchers on 5,000/-. As the cheque signing parties are both President and Secretary , he stole the money by thinking But the additional 15,000/- were shadowed i.e. never shown. Like this way many transactions have been done for those two periods and nothing has been informed to the secretary regarding this matter. Also, please note that as per Minutes of Meeting resolution, there was an accountant who is one of the board members, working in tandem with treasurer for maintaining Cash Book, Ledger entry, Pass Book etc etc. Now when auditor gave report regarding this at the end of 2015, my father came to know about this huge mishap. From here the situation turns out bad. People thinks that the whole money has been taken by my father as he is one of the check signing authority apart from Treasurer and President. All this things will be fortified that who is the main culprit, once the case is registered through Registrar of Cooperative Housing Society and the matter may be investigated by police or SIT as ordered by the court. But before this could happen, a group of people have targeted to tarnish my fathers and our family reputation by saying that he is the main culprit and all the money has been taken by him. Also, due to extreme shortage of funds, cooperative housing society is taking maintenance in advance to meet all the expenses. But those people are also going to every houses and compelling everybody, not to give maintenance charges as they believe that all the board members have lots of money at their hands so they can run the society. After repeated G.D made to local PS, still things are not in shape. Therefore my request to you is to please sort out a plan that how this kinds of uprising could be suppressed as our life has become miserable due to this continuous problems.