The Trump administration is back with another massive blow aimed at the H-1B visa programme. And this time, it wants to make the six-figure price tag permanent. A major development is unfolding in Washington, where the administration is preparing what could become the largest mass visa revocation drive in U.S. history. National Security Adviser Ajit Doval called on Chinese Vice President Han Zheng, ahead of the crucial Special Representatives' talks on the India-China boundary question.