Gokul Milk — shopkeepers charging more than mrp

Address:

Mumbai City, Maharashtra

Sir in iit powai area almost every dairy shopkeepers are charging more than mrp for gokul milk... I just want ask are they permitted to charge more than mrp or they are doing it illegally... Plsss answer bcs i want to file a compliment against the shopkeeper because when i asked him why he is charging more he answered very rudely and misbehaved with me... Plss answer me as soon as possible