Declension table of ?dvitīyātantra

Neuter	Singular	Dual	Plural
Nominative	dvitīyātantram	dvitīyātantre	dvitīyātantrāṇi
Vocative	dvitīyātantra	dvitīyātantre	dvitīyātantrāṇi
Accusative	dvitīyātantram	dvitīyātantre	dvitīyātantrāṇi
Instrumental	dvitīyātantreṇa	dvitīyātantrābhyām	dvitīyātantraiḥ
Dative	dvitīyātantrāya	dvitīyātantrābhyām	dvitīyātantrebhyaḥ
Ablative	dvitīyātantrāt	dvitīyātantrābhyām	dvitīyātantrebhyaḥ
Genitive	dvitīyātantrasya	dvitīyātantrayoḥ	dvitīyātantrāṇām
Locative	dvitīyātantre	dvitīyātantrayoḥ	dvitīyātantreṣu

Compound dvitīyātantra -

Adverb -dvitīyātantram -dvitīyātantrāt