Except for the plenary sessions on Wednesday morning, which will take place on the campus of the Indian Institute of Technology (IIT), all conference events (opening and closing plenaries, panels, lectures, posters), as well as registration, coffee breaks, lunches, and book exhibit, will take place in the buildings of the India HabitatCentre, New Delhi's premier state-of-the art conference center, centrally located within a few minutes' walk from the beautiful Lodi Gardens. See http://planit-india.com/ipra2013/venue.php for details.
On Wednesday, transportation will be provided to IIT directly from the hotels. For those arriving on Wednesday: find your way to the Main Gate (on Outer Ring Road) which is often called 'IIT Gate' by taxi drivers; the meetings will be in the Seminar Hall, Main Building, about 500 yards to the right after you enter the main gate.
Left: India Habitat Centre -- Right: Indian Institute of Technology
There will be conference buses from the hotels to the venue in the morning, and back in the evening (or at noon on Wednesday).