Declension table of ?ṛchyamāna

Neuter	Singular	Dual	Plural
Nominative	ṛchyamānam	ṛchyamāne	ṛchyamānāni
Vocative	ṛchyamāna	ṛchyamāne	ṛchyamānāni
Accusative	ṛchyamānam	ṛchyamāne	ṛchyamānāni
Instrumental	ṛchyamānena	ṛchyamānābhyām	ṛchyamānaiḥ
Dative	ṛchyamānāya	ṛchyamānābhyām	ṛchyamānebhyaḥ
Ablative	ṛchyamānāt	ṛchyamānābhyām	ṛchyamānebhyaḥ
Genitive	ṛchyamānasya	ṛchyamānayoḥ	ṛchyamānānām
Locative	ṛchyamāne	ṛchyamānayoḥ	ṛchyamāneṣu

Compound ṛchyamāna -

Adverb -ṛchyamānam -ṛchyamānāt