The Role of MRP in Free Market Dynamics

The same Coke bottle which cost you 30 rupees at the Panwal store is now has a printed price of 60 rupees. Brands lobbied with government to have different MRP's one for the postured letter and one for the common man. So why should the guy in a remote place in Kholapur still be forced to sell at 30 rupee when it's not economical for him? The airport guy for the same reason is allowed to jack up the place. Having MRP for different segments is kind of far sickle in that sense.