What already runs
The manufacturing base is older than the current policy language, and wider than electronics.
Western and southern corridors already make vehicles, parts, refined products, chemicals, textiles, processed food and a large volume of generic medicines. Chennai and Pune are automotive cities. Ahmedabad and Surat sit in a Gujarati trading and factory economy. Hyderabad combines pharmaceutical production with technology offices. Mumbai’s industrial belt and the Jawaharlal Nehru Port move goods the city no longer manufactures in its centre. These are operating facts. They pre-date any single scheme.
Pharmaceutical formulations are an export strength built on chemistry skill, scale and regulation in the buying country. Active ingredients are a more mixed story, with Chinese supply still important in many molecules. Electronics assembly has deepened, especially in phones and some components, and still imports a long bill of materials. Defence production has a larger domestic order book than it did, under its own licensing and procurement rules. Food processing is the manufacturing face of the farm economy, limited by cold chain, aggregation and standards as much as by demand.