Declension table of ?satyamantra

Neuter	Singular	Dual	Plural
Nominative	satyamantram	satyamantre	satyamantrāṇi
Vocative	satyamantra	satyamantre	satyamantrāṇi
Accusative	satyamantram	satyamantre	satyamantrāṇi
Instrumental	satyamantreṇa	satyamantrābhyām	satyamantraiḥ
Dative	satyamantrāya	satyamantrābhyām	satyamantrebhyaḥ
Ablative	satyamantrāt	satyamantrābhyām	satyamantrebhyaḥ
Genitive	satyamantrasya	satyamantrayoḥ	satyamantrāṇām
Locative	satyamantre	satyamantrayoḥ	satyamantreṣu

Compound satyamantra -

Adverb -satyamantram -satyamantrāt