Declension table of ?arthatantra

Neuter	Singular	Dual	Plural
Nominative	arthatantram	arthatantre	arthatantrāṇi
Vocative	arthatantra	arthatantre	arthatantrāṇi
Accusative	arthatantram	arthatantre	arthatantrāṇi
Instrumental	arthatantreṇa	arthatantrābhyām	arthatantraiḥ
Dative	arthatantrāya	arthatantrābhyām	arthatantrebhyaḥ
Ablative	arthatantrāt	arthatantrābhyām	arthatantrebhyaḥ
Genitive	arthatantrasya	arthatantrayoḥ	arthatantrāṇām
Locative	arthatantre	arthatantrayoḥ	arthatantreṣu

Compound arthatantra -

Adverb -arthatantram -arthatantrāt