Large-scale industrial corridors like the ones listed typically involve complex funding models, including contributions from the Government of India, state governments, multilateral agencies (like World Bank, ADB), bilateral partners (like JICA), and private sector participation (PPP). While other corridors such as Delhi-Mumbai (JICA), Vizag- Chennai (ADB), and likely Bengaluru-Mumbai involve significant known external funding components, the Amritsar-Kolkata Industrial Corridor, developed under the National Industrial Corridor Programme and leveraging the Eastern Dedicated Freight Corridor (which itself has World Bank funding for rail infrastructure), is sometimes referred to as being wholly funded by the Government of India, potentially referring to the specific industrial node development and related infrastructure funding, distinct from the DFC rail line, or representing a comparative lack of a single dominant external bilateral or multilateral funding partner across the entire corridor project compared to others. This categorization can be nuanced and depend on specific project components and phases.