Declension table of ?rāmayantra

Neuter	Singular	Dual	Plural
Nominative	rāmayantram	rāmayantre	rāmayantrāṇi
Vocative	rāmayantra	rāmayantre	rāmayantrāṇi
Accusative	rāmayantram	rāmayantre	rāmayantrāṇi
Instrumental	rāmayantreṇa	rāmayantrābhyām	rāmayantraiḥ
Dative	rāmayantrāya	rāmayantrābhyām	rāmayantrebhyaḥ
Ablative	rāmayantrāt	rāmayantrābhyām	rāmayantrebhyaḥ
Genitive	rāmayantrasya	rāmayantrayoḥ	rāmayantrāṇām
Locative	rāmayantre	rāmayantrayoḥ	rāmayantreṣu

Compound rāmayantra -

Adverb -rāmayantram -rāmayantrāt