Vice President Hamid Ansari ,President of Turkmenistan Gurbanguly Malikgulyyevich Berdimuhamedov, Afghanistan President Ashraf Ghani and Pakistan Prime Minister Nawaz Sharif press buttons for initiating welding process during the signing ceremony of the Turkmenistan-Afghanistan-Pakistan-India (TAPI) gas pipeline project at Mary in Turkmenistan.
Photo: PTI