It is better to introduce Kanyakumari Amritsar SF express via Madurai Tiruchi Chennai rather than this train . Interior portion of TN not having proper connection to Delhi. Only TN Sampark Kranti (2days)+ Thirukkural express (2days) running connecting Deep South to Delhi. /train/160747
click on this link and see this imaginary train made by me long ago. This train will solve connectivity issues as said above. Only Kerala portion got many trains to Delhi not to TN. Shame on SR and NR.