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Here is what "the Tata Group" specializes in:
-Wireless Mobile Services
-Mobile Broadband
-IT consulting (largest in India)
-Business Process Outsourcing (largest in India)
-Product Design
-Cars (largest manufacturer in India, they made the Ambassador, which was pretty much the only car in India for a few decades, owns Jaguar and Land Rover, makes a car that costs only $2,200)
-Energy production (largest in India)
-Steel (largest in India)
-Tea (largest in India, 2nd largest in the world)
-Chemicals
-Satellite TV
In virtually any profitable industry, Tata is there building huge buildings and loving it. Good luck keeping up with that pace, Walmart.