whether the 3 star hotels have authority to charge additionally on A water bottle Above MRP?

This discussion clarifies whether 3-star hotels have the legal right to charge customers more than the Maximum Retail Price (MRP) for items like bottled water. The consensus is that charging above MRP is illegal. While there might not be a service deficiency, consumers can pursue action against hotels for overcharging, and additional GST on such inflated prices is also likely invalid.