One 2A coach will be added in both train no 12940/12939 w.e.f 22nd Sep to 22nd Oct, 2012, and similarly, one 2A coach will be added in both train no 12990/12989 w.e.f 23rd Sep to 22nd Oct, 2012.
/news/97824[Link|http://railnewscenter.blogspot.com/2012/09/augmentation-of-coaches.html?m=1]