India says, the extradition of Pakistani-American David Coleman Headley to the country for his involvement in the Mumbai attacks, is still possible. Speaking on the sidelines of a function in New Delhi, Home Secretary G K Pillai said, there are additional charges against him, which are not part of the plea bargain Headley has entered into with the US. Mr. Pillai said, India has excellent cooperation with US agencies, who have been handling Headley. Asked whether he means to say that the country has more proof to seek Headley's extradition, Mr. Pillai replied in affirmative.<br/><br/>Speaking to reporters, the Home Minister Mr. P. Chidambaram also said, there is a good chance for Indian officials to question Headly as he has agreed to testify before the foreign judicial process in the United States. He said, India has got a fair amount of information from the US with regard to 26/11 terror attacks. He said that while some of the questions have been answered , there are many more questions that remained to be answered. Mr. Chidambaram said, Headley's admission of being trained in Pakistan terror camp has nailed Islamabad's claim that such camps were non-existent in that country.<br/>