The present KCG Madurai can be run Biweekly with change in timings in return for Trichy, Madurai. The Nagercoil KCG express can be run Biweekly with speedup to reach by 1000 and return at 1600 by bypass Trichy. KCG madurai special should be regularised with change in return to morning arrival.
All 3 Hyderabad Chennai trains are running with full capacity throughout the year with WL for 1-2 weeks and should not be disturbed. If Charminar extended then a new triweekly with limted stops should be introduced from Chennai to Hyd to compensate the loss of capacity. One more suggestion is there will be not enough of passengers after Madurai towards NGL so divide into 2 trains triweekly via Cuddalore upto Madurai...
more... and 4 days via direct route. Will decrease running time to NGL.