1. Why The Rule Exists
It comes from real experience. Mumbai and Delhi are trading cities, full of export houses, buying offices and wholesale markets. So the shortcut feels safe.
The trouble is that big Indian manufacturers also like a city office. Banks, ports, customs brokers and foreign buyers are there. The machines aren't.
2. Where The Rule Fails: Head Offices
In September 2026 we read the public US shipping records for 21 Indian product lines. In bed linen and tufted carpets, most of the Mumbai addresses among the ten largest named shippers belonged to manufacturers' head offices, with the mills elsewhere in India (our read of US bill-of-lading records, ImportYeti (opens in a new tab), Sep 2026).
Those are some of the larger home-textile makers in the country. A buyer who crossed them off for a Mumbai postcode would have thrown away exactly the suppliers big retailers use. Ouch.
So a metro address tells you where the paperwork is signed. It doesn't tell you who runs the looms.
3. Where The Rule Holds
It isn't useless everywhere. In ginger, turmeric and other spices, 12 of the 49 named shippers had Mumbai addresses and about a fifth of named shipments were filed under forwarders' names, which made it the most intermediated spice line we read. Compare pepper and chilli, which were led by shippers in Kerala and the other growing and trading belts we'd expect (same records).
Spices fit the trader story because the trade runs through big wholesale markets, and a Mumbai exporter buying from them is doing normal business. That's the pattern where the city address and "trader" really do line up, and even then, the trader may be exactly who you want for a mixed range.
4. The Stronger Signal: How Spread Out Is The Product Mix?
This is the best single test we found. Of 15 Indian maker profiles we read, 13 had one product chapter at 57% or more of their US shipments, usually 72% to 99%. Makers make one kind of thing. The odd one out spread over nine chapters, stone and metal and more, and sent 99% of its shipments to a single US buyer, which looks like a sister company (our count, same records).
You can apply this without any database. Look at the supplier's catalogue, website and email signature. Bath towels and bed sheets from one company? Fine, that's one industry. Towels, brass lamps, basmati rice and auto parts? That's a trading house, wherever its office is. One Indian exporter on a forum summed up the style - "We even export Lifts and Lollipops" (r/IndiaBusiness, 2026 (opens in a new tab)).