Ooty Summer festival which began on May 5th with vegetable exhibition and continued on with the spices exhibition, rose show and the 122nd flower show attended by one and a half lakh visitors had its concluding ceremony today at the Ooty Tribal centre. Nilgiris district collector J.Innocent Divya presided over the function and distributed memorabilia to all department heads and private institutions who were instrumental in the successful execution of the festival.