Economy-pack of Amul milk costlier than other than packs

Amul is amongst the largest selling brands of milk and milk-products in India. But it was surprising to note that six-litre pack of Amul-Gold has Maximum-Retail-Price MRP of rupees 312, while two-litre pack is rupees 99. Evidently it is cheaper to buy three packs of two-litre at a total MRP of just rupees 297 for total six litres rather than one six-litre pack priced at rupees 312. Market-study reveals that profit-percentage at six-litre economy pack is much higher than in packs of half, one and two litres making dealers selling six-litre pack at rupees 300 rather than on printed MRP of rupees 312. Prices of Amul-Gold in packs of half and one litre are at rupees 26 and 50 respectively.

Since most popular pack in milk is of half-litre, standard milk-packings should be half, two and five litres abolishing packs of one and six litres. There should be reasonable and logical economy pricing in packs of two and five litres.