Sorry friend could not get you properly. If you have already passed b.ed then what is the necessity for study leave? However, b.ed degree from IGNOU is valid and one may get all facilities of a trained teacher (including increment) BUT for that you need PROPER PERMISSION (D.I. permission through M.C.). In your case I think you should sought for post-facto approval from D.I. and if you manage to get it you will get increment otherwise you may not get training facility. However we are waiting for your detailed post.
Thanks