Prevent from private money lenders

ABC is partnership firm in which A & B are partners. A is the active partner and B is a housewife having no role in business of the firm. A is responsible for conduct of day to day business of the firm. Now A has done a fraud in the business has taken a huge sum of money from private money lenders in the name of firm. But according to books firm is in profit, but actually it's in huge losses. Now A & C are brothers and B is C's wife. Now private money lenders are approaching in groups in the house of C asking for money. A has never given any money to B nor any share in profits. B's capital is standing in the firm. Whereas A has distributed post dated cheques to private money lenders with his sign. How can B & C protect themselves if people approach in groups to their house? can a police complaint lodged against them. There are cameras outside and inside the house lobby where they have recorded the footage when people came last time. Best remedy available to deal with such people?