Dr. Sudhir Gupta, MD, Innovations Cygnus Hospitals in conversation with Chahat Jain of BWBusinessworld says that the next big growth in Indian healthcare sector will happen in tier II and tier III cities moving on to the rural areas. Metropolitan cities are almost developed and filled by private sector. In the past five decades, there was almost no focus on tier II and tier III cities. PPP model has not really picked up in India despite some efforts by several states at different levels.