Agree with you a weekly AC exp would be sufficient to cater demand. It was created long back felt like sharing as it came in context.
I had been to valley multiple times i have got a strong desire of railway connectivity to these areas which can open doors for washed brains.In such a thought i was making Img to connect all states with valley with limited number of trains. And that was reason for my opinion to extend ML and Kongu(As a daily from 1 weekly).