Airtel site redirecting to Vodafone

Is it a mis-direct , an intentional one or a technical problem?

When typed www.airtel.com in the browser, it redirects to http://www.vodafone.es/

According to the WHOIS data from http://bombayhosting.myorderbox.com/whois :
The domain Airtel.com has following details
Domain Name: AIRTEL.COM
Registrar: CORE INTERNET COUNCIL OF REGISTRARS
Creation Date: 15-dec-1998
Expiration Date: 14-dec-2008

Some Explanation:

Vodafone bought the then second largest mobile phone group in Spain called Airtel Móvil (www.airtel.com) in 1995.

Airtel Móvil is not linked to Airtel India, Bharti Group (www.airtelworld.com)