Today, nobody can buy grain or vegetables directly from farmers without having an APMC licence. That, in turn, is difficult to obtain, even if one were prepared to pay the applicable market fee on the produce procured from the designated area falling under the particular APMC's jurisdiction. State Governments can, of course, be gratuitous in granting APMC licences to enable a Walmart or Tesco to operate. But that does not still address the basic issue of laws protecting entrenched trade cartels while restricting the universe of buyers for farmers.
Why the man-in-the-middle? Isn't he the one fleecing the farmers on one side and the consumers on the other?