Declension table of ?dharmatantra

Masculine	Singular	Dual	Plural
Nominative	dharmatantraḥ	dharmatantrau	dharmatantrāḥ
Vocative	dharmatantra	dharmatantrau	dharmatantrāḥ
Accusative	dharmatantram	dharmatantrau	dharmatantrān
Instrumental	dharmatantreṇa	dharmatantrābhyām	dharmatantraiḥ dharmatantrebhiḥ
Dative	dharmatantrāya	dharmatantrābhyām	dharmatantrebhyaḥ
Ablative	dharmatantrāt	dharmatantrābhyām	dharmatantrebhyaḥ
Genitive	dharmatantrasya	dharmatantrayoḥ	dharmatantrāṇām
Locative	dharmatantre	dharmatantrayoḥ	dharmatantreṣu

Compound dharmatantra -

Adverb -dharmatantram -dharmatantrāt