Vavuniya District ( Tamil : வவுனியா மாவட்டம் Vavuṉiyā Māvaṭṭam ; Sinhala : වව න ය ද ස ත ර ක කය ) is one of the 25 districts of Sri Lanka , the second level administrative division of the country .
Vavuniya District ( Tamil : வவுனியா மாவட்டம் Vavuṉiyā Māvaṭṭam ; Sinhala : වව න ය ද ස ත ර ක කය ) is one of the 25 districts of Sri Lanka .