Hi,
Phd...opps, "searching a topic" is a phd in itself. he he he..:) just kidding.
Just goahead with what you feel is best you can do in research rather than asking someone as it will confuse you so much. Believe me... its true.
Nothing is correct in this world and everything is right in this world, when it comes to research, what is being followed and what is not being followed, what is true and what is not true; all mix's and becomes a biryani.
My suggestion, just goahead and do research on what subject first came to your mind. If there is no company in India using the technique, maybe with your reaseach someday you will be hired for your consultation service. Best of Luck.
Ukmitra