LUNGANI ZUNGUDurban — “Do it for Prince Mangosuthu Buthelezi.”This is IFP president Velenkosini Hlabisa’s rallying cry as he throws down the gauntlet to the party’s main rivals, including the ANC, ahead of the May 29 elections.For all the campaigning sweat and strain, Hlabisa is confident that the IFP will net enough votes to unseat the ANC from power in KwaZulu-Natal and weaken its support to below 50% nationally.In a candid interview with the Daily News, the soft-spoken Hlabisa unveiled his grand plan.“I want to return cities like eThekwini to their former glory. The city has…