Recently in news, because India has been admitted to Agreement

What? Ashgabat Agreement is an international transport and transit corridor facilitating transportation of goods between Central Asia and the Persian Gulf.

Aim: The transit agreement provides for a transit corridor across Central Asia and the Middle East through the continuous landmass between Kazakhstan, Uzbekistan, Turkmenistan and Iran before reaching the Persian Gulf and into Oman

Objective: The objective of this agreement is to enhance connectivity within Eurasian region and synchronize it with other transport corridors within that region including the International North–South Transport Corridor (INSTC)