Requested SR
1)Dindugal - Madurai - Virudhunagar - Kovilpatti- Vanchi Maniyachi - Thoothukkudi ,, 2)Vanchi Maniyachi- Tirunelveli - Nagercoil - Kanniyakumari
3) Nagercoil - Thiruvananthapuram sector also operated by the Main Line Electric Multiple Unit with comfort specialities.