South Africa's government will closely  scrutinize any merger agreed between MTN Group Ltd. and India's Bharti  Airtel Ltd., throwing up a potential obstacle to a deal to create one  of the world's largest cellphone operators as a deadline for talks  draws near.
  MTN is viewed  locally as a national champion, having launched in 1994 as South Africa  emerged from apartheid with the election of Nelson Mandela. It also is  the last South African-owned cellphone company after the U.K.'s  Vodafone Group PLC earlier this year bought control of Vodacom Group  Ltd.
  "The minister believes  we need to keep the family silver at home," Tiyani Rikhotso, a  spokesman for Communications Minister Siphiwe Nyanda, said Tuesday.  "It's important MTN retains its character as a South African company."
  Mr.  Rikhotso said the department has no plans to "become a third party to  discussions" between the Johannesburg-based company and Bharti, and  that it would wait until the details of an agreement are disclosed  before formulating a stance on a tie-up.
  The  National Treasury is considering an application from MTN on exchange  control regulations, and spokeswoman Thoraya Pandy confirmed a  transaction of the size proposed by the two companies would need to be  taken to cabinet for approval.
  "The  South African government is working closely with the Indian government  through their finance ministries," Ms. Pandy said. "It would be  important that such mergers are not only of benefit to the two  companies, but to both countries as well."