What demand u talking about I dont understand 12460 Asr Ndls intercity departs at 6 in morning and if u check its reservation charts not more than 10 pax board/deboard at karnal from ac chair car..
Shatabdi wid dynamic fare will attract even less.
So why to ruin a perfect train for like 10 pax? Demand kitni hai dekh liya karo reservation charts se har din