India and Iran have begun a new round of negotiations on a project to build a gas pipeline through Pakistan.
Two days of talks between senior officials from the Indian and Iranian oil ministries are being held in Delhi.
The three countries say they hope to finalise an agreement on the pipeline by June next year, and to start building it in 2007.
The $6bn project is seen as crucial for India, which relies heavily on energy imports for its fast growing economy.
The US opposes the pipeline, but Delhi says it does not expect improving ties with Washington to affect traditionally close relations with Tehran.