If Bhutan allows construction of a 15-km road between Tashigang in its territory with Lumla in Tawang in Arunachal, Guwahati will be connected with Tawang thereby reducing 200 kilometres distance while the travel time will decrease by over six hours.
Official sources said the Bhutan government has recently conveyed to India that "it needs more time" to decide on the project connecting Lumla-Tashigang.
They said External Affairs Ministry Sushma Swaraj has been requested by political representatives from Arunachal Pradesh to convince Bhutan about the benefits it will bring to the economy of that country besides curtailing travel time between strategically important Tawang and Guwahati.
The sources said one of the reasons behind the position taken by Bhutan could be the fear of China as Beijing has been claiming Tawang and Arunachal Pradesh as its territory.