How are you searching? Searching for US>India might not bring up any results. Break up your search by doing US>DOH and see if you get anything in J and put it on hold. Then do DOH>India which will most likely have much more scarcity in J in which case you should take Y by calling AA and having them add the Y segment to your itinerary on hold. Then keep checking for J on that flight and whenever it becomes available call AA to upgrade at no charge.