Declension table of ?sutantra

Neuter	Singular	Dual	Plural
Nominative	sutantram	sutantre	sutantrāṇi
Vocative	sutantra	sutantre	sutantrāṇi
Accusative	sutantram	sutantre	sutantrāṇi
Instrumental	sutantreṇa	sutantrābhyām	sutantraiḥ
Dative	sutantrāya	sutantrābhyām	sutantrebhyaḥ
Ablative	sutantrāt	sutantrābhyām	sutantrebhyaḥ
Genitive	sutantrasya	sutantrayoḥ	sutantrāṇām
Locative	sutantre	sutantrayoḥ	sutantreṣu

Compound sutantra -

Adverb -sutantram -sutantrāt