Program: Epic Browser
Epic is a web browser based on Mozilla Firefox developed by Hidden Reflex specifically customized to the taste of Indian users, which was released in July 2010. Similar to Flock, the browser has several preinstalled widgets such as social networking, chat clients and email facilities integrated into the browser. It is dubbed as the first web browser from India and also features the first integrated virus protection in a browser powered by ESET.
(Although I am not a Indian, the browser looks like decent. I hope you can help me to make this browser as a portable app.)
Other: Epic creates user settings in %APPDATA% and cache in %LOCALAPPDATA%, just like Firefox.