Gabbar Singh from the movie Sholay is presented as both a ruthless criminal boss and a model businessman from whom we can learn management lessons. Some of the lessons highlighted include conducting competitive analysis, building a strong brand through fear, implementing fair human resources practices such as considering employee opinions, using incentives and threats to motivate employees, and clearing all debts owed. However, the summary also notes that Gabbar underestimated his competition which ultimately led to his demise at the hands of Thakur.