Supreme Court today issued notices to the Centre and seven states on a plea seeking return of unused land, acquired for setting up Special economic zone, SEZ, to the farmers.<br/><br/>A bench comprising Chief Justice J S Khehar and justices D Y Chandrachud and L N Rao sought responses within four weeks from the Centre and states including Telangana and Andhra Pradesh on the PIL.<br/><br/>The PIL filed by SEZ Farmers Protection, Welfare Associations, an NGO, has sought a CBI probe in the matter. It has been alleged that land has been acquired for setting up of SEZ by the states and mostly the land is lying