India has been kept informed about the case of two Pakistan-born Chicago men charged with planning a terrorist attack in India with the help of Pakistan based terror outfit Lashkar-e-Taiba (LeT), according to a US official.

"All I can really tell you from our diplomatic angle is that I know that our Ambassador (Timothy J Roemer) has briefed the Government of India on the case, and we continue to follow the case," State Department spokesman Ian Kelly told reporters on Friday.