Fraud on Court

When court concludes fraud on Court was done by plaintiff , what action and under which provision court takes step and what is done against plaintiff ? Facts of case Plaintiff filled case , after some time defendant died before summon s were served , plaintiff inspite of knowledge of defendant published paper notice and got ex parted order against dead person and all favourable orders. When this was exposed by defendant s legal heir and submitted application under CPC 151 , death certificate of defendant . Judge says it seems it is case of fraud on Court. Death certificate was taken on record from legal heir of defendant , application to set aside all orders against dead person was taken including ex patee order , application was taken to abate suit from legal heir of defendant. All was taken on record and exhibited under provision of cpc 151 inherent powers of court Legal heir of defendant are not taken on record yet . But Hon. Judge suo moto said this is matter of fraud on Court . Myself legal heir of defendant Please refer to question posted at starting .