Shop demanding more than MRP for milk products

I tried to purchase half liter milk (MRP=19) and 200 gm curd (MRP= 11) from KP STORES, Pattandur agrahara, Infront of Foyers Infinity Apartment, Whitefield , Bangalore , Karnataka. Pin:560066. The shop keeper demanded Rs 20 for milk and Rs 12 for curd. When i refused to pay extra penny, he refused to sell good and mocked me by telling to go and complaint at consumer forum, they wont touch him. . Seriously, is this the value of consumer forum nowdays in society. Please look into the matter or do random inspection at that shop and take necessary steps. Hope for fast response

NIRMAL KRISHNA
Whitefield, Bangalore 560066, Karnataka
Email: nxxxxxxxxxa@gmail.com