Really a thing to ponder why not railways running HS on potential routes. Some of them stated BELOW--
1. Ahemdabad-Mumbai
2. KSR Bengaluru-Chennai
3. Howrah-Guwahati
4. Ahemdabad-howrah
4....
more... Nagpur-Mumbai
5. Varanasi-New Delhi
Instead railways running HS on seasonal route. A sheer wastage of resources.😐