Guys, its a clear cut case of cloaking, if you see settings on some tools they have done server side coding to fool google. Now you call it a work of smart linux administrator.
Now supportive comment, when two websites like Yatraonline.com and Yatraonline.in has been registered by separate entity. No way google can treat this one as both have different public IP. But if you write server side piece code, you will be able to fox google crawler. It will damage the cloaked website sooner or later.
This is a black hat
SEO technique not taken very well by any search engine and websites get blacklist if found guilty.
Interesting this was, i read this and found a piece of code last night as google crawler reads but now that code is not there, it shows that Yatraonline.com and Yatraonline.in are two separate thing and google can not immediately started treating them differently. Isn't?