A possible merger of Reliance Communications of India and South Africa's MTN could see Anil Ambani become the enlarged group's chairman and biggest shareholder with a stake of almost 35 per cent.
Like Bharti, India 's largest mobile operator, Reliance has global aspirations. After losing last year's keenly-contested $11bn takeover of Hutchison Essar, India 's fourth-largest mobile operator, to Vodafone of the UK, Reliance needs to raise its game or risk becoming an also-ran.
Apple, Research In Motion and ZTE Corp joined the ranks of the world's 10 largest mobile phone makers in 2007, underlining how technology advances and emerging markets are producing a new cast of winners and losers in the industry.
AT&T has applied for a mobile licence in India in partnership with Mahindra Telecommunications, a local telecoms company, and Mr de la Vega said it was hoping to acquire spectrum for its wireless services.
Vodafone, Bharti Airtel, India's largest mobile operator, and Idea, a smaller rival, have agreed to pool network infrastructure in a joint venture that may in the future seek a stock exchange listing.