Patients of acute & chronic liver failure have long been assumed to have coagulopathy & are given blood products prophylactically as well as during various interventions. But these patients rarely have spontaneous bleed except variceal bleed. Conventional coagulation parameters are insufficient to assess coagulation status of these patients because they reflect only a certain element of coagulation cascade while thromboelastography (TEG) gives a comprehensive report of hemostatic profile including platelet function. Studies using TEG have suggested that defects in prohemostatic drivers are counterbalanced by changes in antihemostatic drivers creating a rebalance in these patients. Acute on chronic failure is a entity with acute decompensation on underlying chronic liver failure. Since there is paucity of data regarding coagulation abnormalities in these patient, study is needed to assess predictability power of TEG in these patients with respect to coagulation abnormalities in patient with ALF and CLD ( cirrhosis) and healthy controls.