Abstract: The present invention provides therapeutic molecules for combating sepsis. The invention provides proteins capable of improving survival through immunomodulation in post septicaemia in mammals and oligosaccharides, capable of immuno modulating inflammation in a mammal. The invention provides protein homologs of human HSP70 derived from nematode Setaria digitata and their recombinant forms and oligosaccharides and their role in immunomodulating inflammatory response in a mammal. The invention also provides a composition comprising therapeutic and/or prophylactic proteins and oligosaccharide molecules for immunomodulation in sepsis; and method for treating and/or preventing sepsis, MODS (multiple organ dysfunction syndrome) or septic shock in a mammal.