Declension table of ?yajñatantra

Neuter	Singular	Dual	Plural
Nominative	yajñatantram	yajñatantre	yajñatantrāṇi
Vocative	yajñatantra	yajñatantre	yajñatantrāṇi
Accusative	yajñatantram	yajñatantre	yajñatantrāṇi
Instrumental	yajñatantreṇa	yajñatantrābhyām	yajñatantraiḥ
Dative	yajñatantrāya	yajñatantrābhyām	yajñatantrebhyaḥ
Ablative	yajñatantrāt	yajñatantrābhyām	yajñatantrebhyaḥ
Genitive	yajñatantrasya	yajñatantrayoḥ	yajñatantrāṇām
Locative	yajñatantre	yajñatantrayoḥ	yajñatantreṣu

Compound yajñatantra -

Adverb -yajñatantram -yajñatantrāt