Sanskrit declension table Declension - cases एकः द्वौ बहवः 1st प्रथमा Nominative subject 2nd द्वितीया Accusative Direct object 3rd तृतीया Instrumental By, with 4th चतुर्थी Dative Indirect object 5th पञ्चमी Ablative from 6th षष्ठी Genitive Of, belongs to 7th सप्तमी Locative in 8th सम्बोधनम् Vocative