Bharti Airtel plans to spend $ 150 milllion towards network enhancement in Zambia.

"We will make an investment of $150 million to expand and improve the quality of the network in the next 2 (to) 3 years," said Manoj Kohli, chief executive of Bharti Africa.

Kohli said on Wednesday the company plans to spend $100 million in Malawi over the same time period.