President Hassan Rouhani and his Tajik counterpart Emomali Rahmon in a meeting on Friday underlined the need for promotion of bilateral relations. The two presidents met on the sidelines of the 13th Shanghai Cooperation Organization (SCO) Summit which opened in Bishkek, Kyrgyzstan a day earlier. President Rouhani and Rahmon explored the ways to expand Tehran-Dushanbe relations in different fields.