How can my sisters new born baby get a South African nationality?

My sister's nationality is South African but she is in India and she delivered a baby there. Is it possible for the baby to get a South African nationality, if so, please tell me the process. Would help alot. Thanks :)

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).