<span style="color: #222222;">Housing and Urban Affairs Secretary Durga Shanker Mishra has said that planning for the National Capital Region-2041 should be citizen-centric. Chairing the inaugural conclave on National Capital Region-2041, in New Delhi, Mr Mishra said, land is the biggest challenge today and that planners should think of ways to make optimum use of existing land. He said, planners should also think about what is causing of bad air quality and flooding in Delhi.<br />''<br />''The theme for the conclave is Planning for Tomorrow's Greatest Capital Region.<br />''<br />''The Regional Plan addresses various sectors namely Transport, Water, Sewerage, Solid Waste, Power and Regional Land use.<br />''<br />''As per a report by United Nation's, Delhi is slated to become the world's largest metropolis overtaking Tokyo by 2028. </span><br />