"My country and all other countries in the WTO framework were disappointed as India made a changed stance in July last," Stephens said at an informal interaction with reporters here.
She said that had India agreed to the new global customs rules, then it could have been an enormous step for trade facilitation for smaller countries as well.
India blocked an agreement on new global customs rules on 24 July saying that there should be a permanent solution on public stock holding for food security for the hundreds of millions of poor people as well as a package for least developed countries.
"We expected the protocol to go through, but for India, it did not," Stephens said.