Braving sub-zero temperatures and chilly winds, a team of Indian scientists on Monday hoisted the tri-colour at the South Pole after a treacherous nine-day expedition. Director of the National Centre for Antarctic and Ocean Research Rasik Ravindra told a tele-conference from the South Pole on Monday evening that they feel at the top of the world at the bottom in South Pole.The eight-member team of scientists and technicians raised the tri-colour at the South Pole at 0130 IST on Monday, the first Indian scientific team to do so.