Declension table of ?kriyātantra

Neuter	Singular	Dual	Plural
Nominative	kriyātantram	kriyātantre	kriyātantrāṇi
Vocative	kriyātantra	kriyātantre	kriyātantrāṇi
Accusative	kriyātantram	kriyātantre	kriyātantrāṇi
Instrumental	kriyātantreṇa	kriyātantrābhyām	kriyātantraiḥ
Dative	kriyātantrāya	kriyātantrābhyām	kriyātantrebhyaḥ
Ablative	kriyātantrāt	kriyātantrābhyām	kriyātantrebhyaḥ
Genitive	kriyātantrasya	kriyātantrayoḥ	kriyātantrāṇām
Locative	kriyātantre	kriyātantrayoḥ	kriyātantreṣu

Compound kriyātantra -

Adverb -kriyātantram -kriyātantrāt