That's a huge save!!
For that, many useless stops should be cancelled then like:
Bina, Sevagram, Chandrapur, Ramagundam, Chittoor, Jolarpettai or Katpadi (any 1), Ottappalam, Aluva, Vaikom(only express train which stops there), Changanasseri, Mavelikara, Varkala, Pettah.