Regular readers of MurthyIndiaDotCom are aware that the U.S. Citizenship Services Section of the U.S. Consulate General, Chennai, periodically provides outreach services at Bengaluru (formerly Bangalore), to help U.S. citizens. The next outreach program at Bengaluru is scheduled for August 6 to September 11-13, 2013.
More information on the services offered and procedure to schedule an appointment can be found here.