The Mumbai Diamond Merchants Association (MDMA) established in 1906 to serve the Indian diamond trade and industry, today helps more than 13,000 members to transact business ethically in the comfort of a trading hall situated in the premises of BDB. The Diamond Hall spread over 20,000 square feet makes business within BDB extremely convenient for the small traders and brokers who are MDMA members.The Mumbai Diamond Merchants Association (MDMA) established in 1906 to serve the Indian diamond trade and industry, today helps more than 13,000 members to transact business ethically in the comfort of a trading hall situated in the premises of BDB. The Diamond Hall spread over 20,000 square feet makes business within BDB extremely convenient for the small traders and brokers who are MDMA members.