The Gora Science Centre and Arthik Samata Mandal, to mark the golden jubilee of the Gora Science Exhibition, are organising one-day free science exhibition at Arthik Samata Mandal complex at Srikakulam in Krishna district on Friday from 10 a.m. to 5 p.m. Educational institutions including engineering and degree colleges, and high shools from Movva, Ghantasala and Challapalli mandals are participating in the event. For further details contact 9848023663.