we do have stocks of jack/jamaican bean seeds of good quality. We can supply any quantity from chennai part gfrom our regional reps at mumbai and new delhi. jack bean, sword bean, sabre bean, jamaican horse bean, jamaica horse bean are one and the same but grown and caled in diffrent names in diffrerent countries. Tne seeds are exrensively used in siddha and ayurvedic medicines. Pl contact us by emilas  private message with all your full contact details  for further info.