Johannesburg (South Africa), Jul 26 (ANI): Prime Minister Narendra Modi met South Africa President Cyril Ramaphosa on the sidelines of BRICS Summit. PM Modi addressed the 10th BRICS Summit before his meeting with the South African President. In his address the PM referred to terrorism and extremism as the biggest threats. The theme of this year's summit is, 'BRICS in Africa - collaboration for inclusive growth and shared prosperity in the 4th industrial revolution'. The three-day summit began yesterday, with the BRICS Business Forum Meet.