During the meeting at the international airport of the Southeastern Iranian port of Chabahar today, Ahmadinejad and Zardari said that the gas pipeline will further strengthen the economic, political and security relations between Tehran and Islamabad and other regional states.
They also underlined the necessity for activating the two countries' existing potentials in a bid to promote development and welfare of both the Iranian and Pakistani nations.
Tehran has agreed to provide a $500 million loan to partially finance construction of the pipeline on the Pakistan side, which will cost $1.5 billion. Pakistan will pay the remaining cost from its own resources.
If everything else goes well the pipeline will be completed in 15 months. Iran has already completed the pipeline in its territory, while the laying of 785-km-long Pakistani section started on Monday.
Demand for natural gas in Pakistan has outstripped supply in recent years, putting existing reserves under immense pressure.
The 2700-kilometer long pipeline was to supply gas for Pakistan and India which are suffering a lack of energy sources, but India has evaded talks. In 2011, Iran and Pakistan declared they would finalize the agreement bilaterally if India continued to be absent in the meeting.
According to the project proposal, the pipeline will begin from Iran's Assalouyeh Energy Zone in the south and stretch over 1,100 km through Iran. In Pakistan, it will pass through Baluchistan and Sindh but officials now say the route may be changed if China agrees to the project.