SVDK/JAT - DLI sector generally gets dedicated trains with no RSA.. None of existing trains has an RSA becoz as demand is high these trains even if start bi or tri weekly end up being daily..
My suggestion would be to start a SVDK-Mumbai weekly train via NDLS, AGRA, JHS, MMR, may be on slot of LTT - NZM AC Express..
Also for SVDK i feel the following trains will be extended to SVDK sooner or later
1....
more... MURI-JAT Express
2. VSKP-ASR Express
3. HWH-JAT Archana Express