Pakistani President Asif Ali Zardari will put with his Iranian counterpart Mahmoud Ahmadinejad during his visit to Tehran, which begins today, the final touches of the gas pipeline project from Iran to Pakistan, media sources said. The sources said that Zardari will proceed after the end of his visit to Iran to Britain and France and will conclude his tour with a visit to Turkey where he will take part in a tripartite conference involving leaders of Pakistan, Afghanistan and Turkey.