Roping in some big celebrities and making them endorse your product has been the old tried and tested marketing campaign in history. This not just helped brands build a huge consumer chain but also gave celebrities a second source of income. But there have been instances in the past where the plan has backfired pretty badly. Surprisingly, there have been chances where the celebrities got trapped in controversies for endorsing a questionable product. And the latest controversy of Akshay Kumar is an example of that. Today here we bring you a list of the top 10 Bollywood celebrities who are called out for endorsing problematic products:  

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