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I drive a Ford (No GPS) and I'm not sure if any ford car here in India has GPS which uploads the data.

I'm curious: How does the upload happen - In-built SIM? Who pays for the Data?

Radio waves. There are GPS jammers. Many truck drivers use them:

http://news.cnet.com/8301-17852_3-57597971-71/truck-driver-h...

GPS is receive-only. The article to which you linked involves a man with a GPS jammer that prevented reception of GPS signals in the local area and hence prevented derivation of location.

What the parent poster was asking is how Ford upload the derived location.

Ah, I misunderstood the question. Thanks for the clarification.

Ford pays for a cell data link. Edge, 2G and analog equipment is still out there and cheap for things like this.

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