This was held on 29th September 2006 at SLAAS Auditorium, Colombo 07.
Chief guest of the Annual Sessions was Vidya-Jyothi Eng ADS Gunawardana Secretary, Ministry of Irrigation.
Prof U Coomaraswamy, Vidya-Nidhi Prof S A Kulasooriya and Prof H G Nandadasawere felicitated at this Sessions.
Presidential address was delivered by Dr K Hirimburegama, President of the IOB. Inter-school Biology quiz competition Jointly organized with Young Biologists Association was also held.