Now, SWR should ask for trains to SWR area on reciprocal basis. Demand trains from Trichy/ Velankanni/ Mayiladuthurai/ Puducherry/ Rameshwaran/ Madurai/ Nagercoil to Ballari/ Hubli/ Vijayapura/ Bagalkot/ Hassan/ Shivamogga.
Let some SR trains pass through SWR area to CR/ SCR/ WR area. Like Mangalore to Hyderabad/ Vijayawada/ Solapur/ Pune. Or say from Coimbatore to Ahmedabad/ Jaipur via Bangalore, Hubli.