India will seek direct access to Pakistani-American terrorist David Headley under a bilateral agreement signed in 2005. Official sources said in New Delhi that a communication is being sent to the US to allow its investigators to question him.<br/><br/>The draft letter is being examined by Union Home Minister P Chidambaram after it was prepared by Solicitor General Gopal Subramaniam and officials of National Investigation Agency NIA .<br/><br/>The NIA has registered a case against Headley and his Pakistani-Canadian accomplice Tahawwur Rana for allegedly conspiring to wage a war against the country and under other sections of Unlawful Activities (Prevention) Act.<br/><br/> The sources said, Headley is wanted in India for conspiring with terror outfit Lashker-e-Taiba in carrying out attacks in Mumbai on November 26, 2008 that left over 160 people dead. Headley had pleaded gulity to the charges in a US court at Chicago.