Declension table of ?tantri

Feminine	Singular	Dual	Plural
Nominative	tantriḥ	tantrī	tantrayaḥ
Vocative	tantre	tantrī	tantrayaḥ
Accusative	tantrim	tantrī	tantrīḥ
Instrumental	tantryā	tantribhyām	tantribhiḥ
Dative	tantryai tantraye	tantribhyām	tantribhyaḥ
Ablative	tantryāḥ tantreḥ	tantribhyām	tantribhyaḥ
Genitive	tantryāḥ tantreḥ	tantryoḥ	tantrīṇām
Locative	tantryām tantrau	tantryoḥ	tantriṣu

Compound tantri -

Adverb -tantri