Pakistan on Tuesday once and for all rejected Afghanistan’s demand of opening up its eastern borders to allow the landlocked state to trade with India, dimming prospects of an early agreement on a new transit trade treaty.

Sources within the Finance Ministry said that visiting Afghan Finance Minister, Omar Zakhilwal, proposed the addition of a clause to the new Pak-Afghan transit trade agreement that could enable Kabul to renegotiate the possibility of trading with New Delhi after three to four years.