Bhatia said the Indian contract, worth $750 million in 2004, is now valued at more than $2 billion.
IBM said under the arrangement it would provide CRM, billing and self-care plus a “powerful content management system to offer rich media content such as music and video over mobile devices.”
Bharti Airtel said the partnership would enable it to scale its network and systems to more than 100 million African customers by 2012.
The mobile firm has operations in Burkina Faso, Chad, Congo Brazzaville, Democratic Republic of Congo, Gabon, Ghana, Kenya, Madagascar, Malawi, Niger, Nigeria, Seychelles, Sierra Leone, Tanzania, Uganda and Zambia.
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