First, ask SWR to do it's part. Why can't SWR run a Vijayapura to Chennai via GDG GTL?
If everything goes well, SWR can run UBL MAQ (via ASK), MAQ BJP (via MAO), BJP MAS (via GDG GTL) & MAS MAQ ( Via KJM BAW HAS) with proper RSA, with maintenance at UBL.
Day dreaming I feel