BANGALORE, July 21: About 12,000 investors who had invested in the various agro schemes launched by Carnatic Agro Farms and Dairies and Sithara Farms and Resorts have called for a CoD probe into the bogus schemes allegedly promoted by the two companies and demanded that provisions be made for early refund of their money. It might be noted that the firms had collected deposits with a promise of providing agro products at cheaper rates.