Nkwazi granted the U-17 Zambia international permission to go for an assessment at Sundowns.
Banda has been accompanied on the trip by his uncle as he seeks to win the favour of Downs coach Pitso Mosimane.
The youngster is highly rated in Zambia and was recently called up to the senior national team for Chipolopolo's 2018 World Cup qualifier against Nigeria in Uyo.
This is after he had played a key role in Zambia's success at the Cosafa U-17 Cup in Mauritius. Banda scored against South Africa's team, Amajimbos, during the competition, as the Zambians won 3-2.
He finished as the joint-top scorer in the competition with five goals and will be hoping he can secure a deal at Sundowns, who are likely to use him in their MultiChoice Diski Challenge side should he sign.
However, Chimbwelenge is unhappy with some of the attention the teenager has been receiving. With so much talent, Banda is likely to attract more attention going forward.
“What happened is that the boy is under too much pressure,” Chimbwelenge was quoted as saying in the Zambian media.
“There were attempts by some agents from other countries who were trying to use underhand methods, including local agents.”
He added: “They wanted to sneak the boy out of the country.”
KickOff.com understands that local agent Mike Ngobeni has been authorised to handle Banda’s affairs in South Africa. He was spotted talking to the youngster at training at Chloorkop on Monday morning.