Bengaluru to Amritsar/Katra via Kacheguda Hyderabad Nagpur Bhopal
Chennai/Madurai to Amritsar via Vijayawada Bhopal
Pune Amritsar via Daund Manmad Bhopal
Extend...
more... 12421/22 Hazur Sahib Nanded Amritsar weekly to Hyderabad.
If railways introduce trains on this route, it will be an superhit as South don't have proper connection to Amritsar.
Also more like:
Mangalore to Hyderabad via Arsikere Ballari Guntakal Dhone Kurnool
Chennai to Rajkot/Bhavnagar/Dwarka/Gandhidham weekly
Chennai to Firozpur via Guntakal Wadi Pune Ahmedabad Jodhpur Bikaner Hanumangarh Bhatinda
Sriganganagar to Howrah (as lieu of cancellation of Udhay Aabha toofan express) via Bhatinda New Delhi Kanpur Gaya Asansol
Ratnagiri/Madgaon to Hazur Sahib Nanded/Nagpur express via Panvel Pune Kurduwadi or via Aurangabad
An Superfast/AC express between Bengaluru to Mumbai (as there are no premium trains plying on this route)
Madurai to Lucknow/Gorakhpur/Patna bi weekly
Tirupati to Varanasi bi weekly express via Vijayawada Vishakapatnam Sambalpur Ranchi Daltonganj Dehri on Sone Sasaram PT DDU jn.
These are my suggestions. Thank you ЁЯШКЁЯЩП