The Who's Who of business magnates in Gaborone will on Thursday start taking the witness box to give evidence when local tycoons clash in a bruising battle between friends-turned-foes and former business partners at Smart Partnership Enterprises. Former Business Botswana President Lokwalo Mosienyane is demanding payment of P15.8 million from Smart Partnership, an investment company owned by a group of local business tycoons, for the work he did on Lot 5439 at the Central Business District (CBD), Gaborone. Smart Partnership will start calling witnesses among them Sam Mpuchane, Kabelo Ebineng, Martin Mannathoko, Dennis Alexander, Seleka Mokama, Anjana Suresh and an architect Charles Cook to provide expert opinion to counter Mosienyane. The developments at the centre of the dispute are being rolled out on a piece of land to the northern side of the intersection where A12 Gaborone-Molepolole road connects Nelson Mandela highway in the city centre. The first office complex has just been completed on the site housing a hotel. Mosienyane's company Mosienyane & Partners International is suing for payment of architectural services provided in the pre-development stage of a mixed-use development for Lot 5439. Mosienyane & Partners were engaged as architects for the pre-development phase by project managers, JHI…