Bro if u are really interested for a premium service,Run a Humsafar from Kanyakumari or Nagercoil to Nizamuddin. Bcoz if u originate it from Trivandrum, CAPE association and TN rail users will say that Kerala's dumping trains on their route.Also Tvm people will prefer the Konkan way for New Delhi and TVC itself cannot fill a Rajdhani. They are demanding a Rajdhani via the Old route.