Bhai why NE is kept ahead 12324/12820/12826 b/w ANVT-CNB because NE's TT is more aggressive than 12324/12820/12826. As per original TT NE should take 6hrs 5 mins for ANVT-CNB, whereas 12324/12820/12826 takes 6:10 to 6:20 hrs for NDLS-CNB. So most of the times preference is given to NE and controllers do not allow OT of NE and keep NE ahead of 12324/12820/12826, which is a valid point of view