kukukajoo, my firm is legal counsel for 2 of the larger pharmaceutical companies in india....if you are buying a large quantity then i would be more than happy to put you directly in touch with both of them (provided they manufacture this drug)....
pm me if you are interested & i can either give you the name of the companies so that you can research them yourself to find out if they make the drug, or you can give me the name of the drug & i can ask them whether they make it....