Double line was not projected by Railway Board ,as it is 50.50 share of govt and railway ...The International Airport and so called Aviation Hub which is going to first of its kind in Country and going to be the biggest Airport in the country ,going to be set up in Hisar...so to provide Fast connectivity between Capital and the city...Manohar Lal Khatter met Mr Gadkari for Expressway between Hisar-Delhi of Six lane and he gave the green for it and now he met RM for high speed corridor and RM also gives his Green flag and instructed to built this line keeping in mind of high speed norm ...so thats why this line is being doubled ...Haryana Govt raise his fund from 650cr to 1500cr!!