The site will offer online networking resources so two or more small firms could potentially package their goods and services to present a stronger bid on any contract.
Prototypes built by researchers at the Naval Research Laboratory, Stanford University and Philips, a Dutch electrical-goods firm, can detect a substance that is present at a concentration of less than one part in a million billion.
At present, Dharavi has a large number of thriving small-scale industries that produce embroidered garments, export quality leather goods, pottery and plastic.