Thimphu, July 4 (PTI): India and Bhutan have discussed ways to improve security along the international border and the possibility of opening a road, linking Arunachal Pradesh's Tawang with Assam via the Himalayan country. Better security coordination along the Indo-Bhutan border, more trade between Bhutan and Indian states like Assam, Arunachal Pradesh and West Bengal, cultural exchange and a host of other issues were discussed by Minister of State for Home Kiren Rijiju with the top Bhutanese leadership, including Prime Minister Tshering Tobgay, during his two-day visit here that ended yesterday. During the meeting, the Bhutanese Prime Minister is believed to have cited various concerns of the people of Bhutan because of which the country is not yet ready for proposal like joint security along the border, sources said.