ISLAMABAD (Agencies) For the first time, the Indian government has admitted that at least one of Mumbai 26/11 terror attack handlers could be an Indian. The 10 terrorists who attacked Mumbai on November 26, 2008, could have been guided by an Indian handler whose true identity was yet to be ascertained, Indian Home Minister P Chidambaram admitted on Thursday. When we say he could be an Indian, he could be somebody who acquired Indian characteristics. He could have been infiltrated into India and lived here long enough to acquire an Indian accent, familiarity with Indian Hindi words, P Chidambaram told CNBC-TV18. Chidambaram said voice samples of the suspect from Pakistan were essential to conclusively establish the identity of Abu Jindal, who is suspected to the Indian handler. Refusing to speculate on the name of the handler, the Indian minister said investigators had known for long time that there was a handler in 26/11 attack who could be an Indian. We know him by Abu Jindal that something we have known for many months now, but he is not Abu Jindal. That is not his real name, he said, adding: We cannot put a finger who he is, unless we get a voice sample. And they wont give us voice sample.