NEW DELHI - Indian investigators will be given access to the Chicago man who pleaded guilty to helping plan the Mumbai attacks, but he won't be extradited to India on current charges, a US official said on Saturday. New Delhi wants to interrogate David Headley, who this week admitted to a US court to scouting targets for the 2008 rampage on India's financial hub, which killed 166 people and derailed peace dialogue between India and Pakistan. US Assistant Secretary of State Robert Blake, on a two-day trip, assured authorities of cooperation in the Headley case. "The other question that has been raised is whether Indian investigators will be allowed access to Mr Headley to learn more about his involvement in the planning of the Mumbai attacks, and the answer to that is yes," Blake told reporters. Headley has been cooperating with US investigators since his arrest in October and faces up to life in prison. He has pleaded to 12 counts, including conspiring to bomb and murder US and Indian citizens.