Yes deepak i know this and I discussed same plan some months back on IRI. From beginning itself when they stopped Hubli double line from Binkadkatti side at Gadag outer on left side that time I guess they take that line to join present single line of Gadag Hubli and new double line they join to Gadag Bijapur line and two new lines they construct for Gadag Hotgi doubling.. You are 100 % right and I said u previous also that Gadag Yard and outer works will be last part to complete Hubli Hospet doubling as they have to plan about Gadag Hotgi doubling also and it will be good if they consider Gadag yalavigi new line planning from now itself by leaving some space on Hospet side outer of Gadag.. Still Gadag New Bypass line and New Station on Bijapur route to join bypass line and lot of works are...
more... pending which takes lot of time. Their priority is now to construct atleast one new line and make it as Gadag Bijapur line and present Line to join Hubli doubling line by which they can commission doubling of Binkadkatti Harlapur..