As per the latest analysis, the Mumbai extended urban agglomeration (EUA), consisting of Mumbai, Navi Mumbai, Thane, Vasai-Virar, Bhiwandi and Panvel, had a 2015 GDP of US $368 billion when seen in terms of purchasing power parity (PPP), using a 2012 PPP conversion rate of Rs 15.5 per dollar.
The Oxford Economics forecast for 2030 shows that Delhi and Mumbai will move further up the list. While Delhi is predicted to be at the 11th spot, Mumbai will be 14th.
Mumbai EUA, with a lower population, scores over Delhi EUA in per capita terms. A TOI analysis of Oxford Economics figures puts Mumbai's per capita GDP at PPP at $16,881, while the same for Delhi is $15,745.
Prof Bino Paul, Tata Institute of Social Sciences (TISS), said post-liberalisation, Delhi National Capital Region (NCR) seems to have outpaced Mumbai metropolitan in physical infrastructure and social infrastructure.