Instead of spoiling the only dedicated train between Bangalore Mumbai, why not introduce a new train Ashoka Puram (Mysore) to Mumbai via Hassan, Bantwal, Suratkal, Karwar, Madgaon Panvel? Win win for Mysore. Mysore gets connected to Coastal karnataka and Mumbai.
Something like MYS DEP 1900 HAS 2130 UD 0600 KAWR 0930 MAO 1030 PNVL 1730. Return PNVL 2100 MAO 0700 UD 1000 HAS 1700 MYS 1900.