Google is in early talks to buy an Indian tech start-up that specializes in mobile advertising, Reuters reports.
Bangalore-based InMobi helps companies target phones and mobile devices in their advertising. The company was launched in 2007 and claims to have more than a billion users across 200 countries.
Its shareholders including Japan's SoftBank.
Google's move is seen as a bid to strengthen the search giant's offerings in the increasingly competitive mobile advertising business.
Reuters quoted an InMobi source as saying that the company would likely be valued at around $1 billion.
Both InMobi and Google declined to comment.