There are 3 shatabdis to cdg from ndls this can be extended version of one of them. Chandigarh & agra have only 4 direct trains & kalka to agra only 1 this is a dedicated connectivity from kalka to agra it will be helpfull for both e2e pax & for delhi to kalka & delhi to agra.; it will be very important for tourist travelling from agra to shimla they can also enjoy the beauty of kalka shimla rail route as well as taj in agra monuments in delhi & will be good for pilgrims going to mathura.