The 31-year-old former AmaZulu, Moroka Swallows and Kaizer Chiefs defender joined Babina Noko after leaving Amakhosi in 2024 and went on to make just six appearances.
He spent a brief spell on trial with Chippa United in the off-season but was let go without securing a contract, and has now linked up with City, who will compete in the Motsepe Foundation Championship this season.
A club statement read: "New chapter in Blue!
"We are delighted to announce the signing of defender, Njabulo Ngcobo."
The race for a place in the MTN8 final heats up this weekend as Orlando Pirates, Mamelodi Sundowns, Stellenbosch, and Sekhukhune United battle for first-leg supremacy in the semi-finals.
Stellenbosch FC are gearing up to host Sekhukhune United in a high-stakes first leg of the MTN8 Cup semifinals at Danie Craven Stadium on Saturday, with kick-off slated for 18:00.
Sekhukhune United coach Eric Tinkler admits his side will have to be at their best to overcome a very strong Stellenbosch side in their upcoming MTN8 semi-final clash.
In the latest Betway Premiership fixtures on Wednesday night, Sekhukhune United, Durban City, and Golden Arrows all secured important victories to maintain strong starts to their campaigns, while Magesi FC remain unbeaten.
