“As per the defination of “”Use by date”” in FSS (Packaging & Labelling) regulation, 2011 “Use – by date” or “Recommended last consumption date” or “Expiry date” means the date which signifies the end of the estimated period under any stated storage conditions, after which the food probably will not have the quality and safety attributes normally expected by the consumers and the food shall not be sold;
Thus, you shall not use the product beyond use by date.