Declension table of ?ṛṣimukha

Neuter	Singular	Dual	Plural
Nominative	ṛṣimukham	ṛṣimukhe	ṛṣimukhāṇi
Vocative	ṛṣimukha	ṛṣimukhe	ṛṣimukhāṇi
Accusative	ṛṣimukham	ṛṣimukhe	ṛṣimukhāṇi
Instrumental	ṛṣimukheṇa	ṛṣimukhābhyām	ṛṣimukhaiḥ
Dative	ṛṣimukhāya	ṛṣimukhābhyām	ṛṣimukhebhyaḥ
Ablative	ṛṣimukhāt	ṛṣimukhābhyām	ṛṣimukhebhyaḥ
Genitive	ṛṣimukhasya	ṛṣimukhayoḥ	ṛṣimukhāṇām
Locative	ṛṣimukhe	ṛṣimukhayoḥ	ṛṣimukheṣu

Compound ṛṣimukha -

Adverb -ṛṣimukham -ṛṣimukhāt