This document discusses five models for predicting business failure: Beaver's model, Altman's Z score model, Wilcox model, Blum Marc's failing company model, and L.C. Gupta's model. It focuses on explaining Blum Marc's failing company model and L.C. Gupta's model. The failing company model was developed by Marc Blum to assess failure probability using financial data from 115 failed and 115 non-failed companies from 1954-1968. It achieved 94% accuracy for failures within one year and 80% accuracy for failures within two years. L.C. Gupta's study on Indian companies found that earnings before interest, taxes, depreciation and amortization/sales and operating cash