Is there any other package other than
elinks so that I browse internet inside the terminal using terminal as a browser. I feel elinks is a bit difficult to operate.
There are three families of text web browsers.
lynx is the classic text mode web browser. It's slightly older than the web. Its interface is nothing to write home about. It has the advantage of being available on many exotic platforms.
w3m has an interface with a different (and I think much more nicer) feel. It's better than the others (though links has been improving lately) at rendering web sites with complex formatting, not necessarily the way the designer intended it, but in a readable way. It can display images. There's an Emacs interface, w3m-el .
My recommendation is to use w3m now but keep an eye on (e)links's evolutions.
Elinks is IMHO best to use on a daily basis.
Amongst other features it supports
Gmail is still very much workable and as any other page, very fast under Elinks.