Speaking to reporters, Tharoor said, "Rana's visa papers have been found. We are tracing those of Headley."
He was responding to a question when asked to comment on reports about disappearance of documents related to the visas issued by the Indian Consulate in Chicago.
Meanwhile, foreign secretary Nirupama Rao refused to comment, merely saying that she had sought a report and the matter was being probed.
"There is a procedure. I will not answer any questions in this regard," she added.