Not this one. You already have a pipe with spare capacity on this route.First off, these talks of investment is most likely being discussed and not finalized. Secondly, it is probably for oil pipelines. There is a possibility that India might be able to use these pipelines to import Iranian oil. Are there details anyone can share?
This is neither ip or tapi line. I agree if Indian joins the ip or tap project the pipelines will be more cost effective.