WHAT IS MRP, WHAT IS IT COMPRISES OF, HOW IS IT CALCULATED, WHAT IS THE ROLE OF Govt. (OF INDIA) IN IT?

THE MAX. RETAIL PRICE (MRP) - HOW IS IT FRAMED, WHAT IS THE ROLE OF RELAVENT GOVERNMENT AGENCIES IN FORMULATING THE PRICE, WHY NOT THE DEALER / STOCKIST / RETAILER 'S MARGIN MADE TRANSAPERANT ?? IS IT VARIES FROM INDUSTRY TO INDUSTRY ?? LIKE TO KNOW THE TOTAL DETAILS OF MRP