Governor R.N. Ravi on Monday inaugurated the 29th session of the annual Indian Art History Congress (IAHC) on “Indian Iconography with Special Emphasis on Regional Developments” jointly organised by the Indian Art History Congress, Guwahati, and the C.P. Ramaswami Aiyar Institute of Indological Research (CPRIIR) at the C.P. Ramaswami Aiyar Foundation, Alwarpet.