New Delhi, July 22 (ANI): Indian capital New Delhi, which was recently named the second most populous city in the world after Tokyo, is bursting at the seams - struggling to meet the challenges of a population explosion, experts warned. Home to 25 million people, a number more than the population of Australia, Delhi has become the world_s second most populous city, said a United Nations report released by its Department of Economic and Social Welfare. The primary problem, the report stated, lies in migration of people from rural areas to urban areas in lookout for better living conditions. Meijer said it is difficult to stop people from migrating but advised a managed and fair distribution of revenues by the government to ensure good quality of living for all sections.