India, April 13 -- The failure of the first direct talks between Iran and the United States in almost five decades to produce any breakthrough has resulted in greater uncertainty about the fragile truce in West Asia, though observers believe the negotiations brokered by Pakistan have left the door open for further engagements that could help address the existing tensions.

The US team led by vice president JD Vance and the Iranian delegation led by Parliament Speaker Mohammad Bagher Ghalibaf left Islamabad on Sunday after 21 hours of talks that gave no indication of the way forward, and triggering fears of the resumption of the intense conflict that has already disrupted global oil and gas supplies and battered the energy infrastructure i...