Operational and development complexities of cities call for new state of art agenda to be defined for planning, development and management of cities in this era of globalisation and liberlisation of economies. Looking at the enormous population growth and large count of people marching and opting for cities, growth and development of urban areas is emerging as the major issue. Cities known for positivity and negativity can be major source of disasters- both physical, social and environmental. Cities will and are likely to pose major threat to global sustainability. For making planet earth more sustainable and livable ,planning , development and governance of the cities have to be redefined both by professionals, communities, people and parastatal agencies. Planning for sustainable cities must include and involve poor and meeting the basic human needs of living of the poorest of the poor. City planning, development, governance and mobility needs new definition.