Davu was born in Nadi, Fiji.[1] Her family home was in Nuku, a village in Serua Province. She began playing netball aged 8 and attended Lomary Secondary School.[2] In November 2007, Davu's father collapsed at Nadi International Airport. He was part of a small group of relatives and friends that were meeting the Fiji team on their return from the 2007 World Netball Championships. He died shortly after.[3][4] She is married to Aporosa Tamaniveli. They met in 2004 when she returned to Fiji on a holiday. Together they have one daughter.[5][6]
In 2007, Davu played for Northern Force in the National Bank Cup league.[9][10][16][17] In November 2006, Davu was announced as the new head coach of Fiji. It was speculated that she would be released from her contract with Force.[18] In March 2007, Davu was injured in a car accident in Suva. She escaped serious injury but was unable to join the Force team for pre-season.[19][20] She subsequently helped Force reach the 2007 grand final, which they lost to Southern Sting.[21]
In 2006 and 2007, Davu served as head coach of Fiji.[18][57][58] She was head coach when Fiji won the gold medal at the 2007 South Pacific Games[59][60] She was player/coach for Fiji at the 2007 Netball World Championships.[37][38][60][61][62] Davu faced criticism for her performances at the tournament. She admitted her fitness and conditioning wasn't what it should have been, but emphasized she was only a late inclusion in the squad after visa issues ruled out some of the other members.[24][25][29]