The present invention relates to novel synergistic composition of bioactive amounts of, Thifluzamide, Metalaxyl M and at least one additional fungicide selected from Ametoctradin, Chlorothalonil, Fluazinam, Fluopicolide, Folpet, Mancozeb, Mandipropamid, Metiram, Propineb, Zoxamide along with one or more inactive excipients. The present invention also relates to process for preparing the said composition comprising bioactive amounts of Thifluzamide, Metalaxyl M and at least one additional fungicide selected from Ametoctradin, Chlorothalonil, Fluazinam, Fluopicolide, Folpet, Mancozeb, Mandipropamid, Metiram, Propineb, Zoxamide with one or more inactive excipient
