Oktatabyebye.com can't use the word 'Tata'?

I thought that Tata was an English word apart from being the name of the business house controlled by Tatasons. The dictionary link above says that the word Tata has been in use since 1823 and the Tata Sons website uses 1868 as the starting point of their 'heritage'. To my readers from other countries Tata is the same company that now owns Jaguar and Land Rover car brands. It is the same company that owns hotels the Taj Mahal Hotel that came under terrorist attacks in Mumbai. They own a very profitable software company named Tata Consulting Services.

But do they own the English word Tata too? Looks like they think so. They went after Oktatabyebye.com, (owned by makemytrip.com) a travel portal telling that the website can't use the word Tata! Even when the word has been in existence since 1823 much before the company website itself starts talking about its heritage! Here is what Oktatabyebye.com is saying-

Very recently, TATA Sons filed a case against us (oktatabyebye.com) in infringement of their TATA name (as our domain name contains the 'TATA' word!). Tata Sons has contended that it is confusingly similar to its 'Tata' brand and the travel portal runner has no rights or legitimate interests to use it. The company had argued that the site infringed the right of its registered trademark/service mark 'Tata'.

And in a decision by a sole panelist, ownership of the domain OkTataByeBye.com has been awarded to TATA by WIPO (World Intellectual Property Organization) Arbitration and Mediation Centre.

Who would the Tata Sons like to go after next? The kids who say tata to each-other or the non-Tata owned trucks (yes they make trucks too) that write 'tata' at the back of the truck as truck art?

Hope some sense and perspective will prevail in this case and the travel portal Oktatabyebye.com remains the same.

Update 1: Found this news article on the Oktatabyebye issue in TOI.

Update 2: Wrote a mail to the address available from the 'contact us' page of the Tata Sons website voicing my opinion, if I get a reply I will append it here.

Update 3:

Fly You Fools - Indian Comics about Life.