I have no hard evidence yet.
Tata Motors is based in India. They are known for cutting corners in an "innovative" (and oxymoron if you ask me) way. Land Rover doesn't need corners cut. It need to be made stronger and more reliable.
If you've paid attention to anything about the brand over the last four to six years, and specifically to the design and development of the D5, then you would realize making it stronger and more reliable is exactly what they've done. It's stiffer, stronger, has better off-road geometry, and is built on the RRS platform with the same engines and running gear, which beat Acura and Audi in JD Power's 3-year durability ratings.
They are not British. I don't even consider them Land Rovers anymore.
What makes a British car? Does it need to catch on fire when you drive it through puddles? Fill the fuel tank with water when wading? Should you require a mechanic and several support vehicles on your safari? Should the switch wiring degrade to the point where a switch activates a random feature, or fails to activate anything at all? Should it leak oil while hanging on in quiet desperation in your driveway?
Sorry, but the old Land Rover was a dinosaur headed for extinction. It was within months of being put out of its misery. It's more British now than it was under Ford...Ford just didn't want to (and couldn't) invest the money required to keep it alive, so they sold it for a loss after assessing the business plan they created for it. Tata bought them, pumped real money into it, and promptly made them independently operated - JLR is now the largest automaker in England, and employs more UK employees than it ever has. Not sure how you can say a $1.2B investment is "cutting corners" when Ford refused to do the same.
If you don't like it, fine, go get yourself a G-Wagen. They're still ugly and over-hyped...should be a good fit for you.