I saw somewhere Three.co.in for sale. It is a large 3G international mobile phone company, which also markets its service to India and outsource its customer service to Indian company. I'm pretty sure they want the domain but am not sure the legality of the domain owner.
Enough about 'Three' now how about 'Two' hm..honestly I don't how much it'd be worth, $xx range maybe (wholesale value) but hey keep it, it's a nice one to own, don't rush to sell it yet. Just my 2 cents....