TEHRAN (PPI) - Iran will start exporting natural gas to Pakistan from 2013, after the neighbours agreed on Tuesday to build a $7.6 billion pipeline. Construction of gas pipeline, which may be extended to India, will begin next year, Iranian state television reported on Tuesday, citing talks in Islamabad. The link will be able to export 30 million cubic meters of gas a day to Pakistan, the channel said. If India joins the project, pipeline would be longer than 2,500 kilometers. The project has been delayed more than a decade because of political concerns. Iran, which has worlds second-largest natural-gas reserves after Russia, is in talks with Pakistan and India to export gas through the pipeline from its South Pars field. Tensions between India and Pakistan have delayed the project. Pakistan and Iran said they will go ahead with the project even if India doesnt participate.