KATHMANDU: Prime Minister Pushpa Kamal Dahal told Indian President Pranab Mukherjee that Nepal would spare no effort to strengthen Nepal-India ties. Dahal said so while he paid a courtesy call on visiting state guest in Kathmandu today. The Prime Minister further informed that the Nepal Constitution was at its final phase of implementation and some disputed issues in the charter were being discussed. for solution, according to the Rastriya Samachar Samiti. Minister for Foreign Affairs Prakash Sharan Mahat, who was present during the meeting, informed that Mukherjee and Dahal discussed strengthening the bilateral relations and other issues of mutual interest in the meeting at the Hyatt Regency in Bouddha today. Minister Mahat further stated that the visit of PM Dahal to India in September had further heightened the Indo-Nepal ties.