Vishakha Utsav - This 4-day grand festival is held at Visakhapatnam, the port city, organized by the State Government to augment tourism in the State. This exclusive event exhibits the traditions and culture in the form of arts,crafts, music, dance and other cultural programs where the outstanding artists in the field from all over the state participate. The main attractions of this event are cultural shows, garment exhibition, traditional crafts, heritage tours, sports events and flower show. It is a perfect way to have a glimpse of the cultural heritage of this beautiful State.
Deccan Festival- This 3-day festival is celebrated on second Friday, Saturday and Sunday of April every year in Hyderabad. Music, Dance, Theatre,Ghazals, Mushairaras, Qwaalis and Arts & Literature are prime features of this cultural festival. Pearls and Bangle Fairs are also held during this time. A visitor to this festival can enjoy the delectable Andhra cuisine, along with the culture of the land.
Lumbini Festival - This festival is celebrated on 2nd Friday to Sunday of December at Hyderabad and Nagarjunasagar, to highlight and celebrate Buddist heritage of Andhra Pradesh.
Rayalaseema Food and Dance Festival - This festival is celebrated in October in Rayalaseema area of Tirupati in Chittoor District, with arts and cuisine of the place.
Check out this site also.