The document provides information about Surat District Co-operative Milk Producer's Union Ltd (SUMUL), including: 1) It was established in 1951 to support milk producers in Surat and is part of the Gujarat Co-operative Milk Marketing Federation. 2) It collects milk from farmers, tests quality, processes the milk and sells products like milk, butter, ghee across Surat. 3) It has grown significantly over the years in terms of milk procurement, production and sales.