Declension table of ?ṛtupātra

Neuter	Singular	Dual	Plural
Nominative	ṛtupātram	ṛtupātre	ṛtupātrāṇi
Vocative	ṛtupātra	ṛtupātre	ṛtupātrāṇi
Accusative	ṛtupātram	ṛtupātre	ṛtupātrāṇi
Instrumental	ṛtupātreṇa	ṛtupātrābhyām	ṛtupātraiḥ
Dative	ṛtupātrāya	ṛtupātrābhyām	ṛtupātrebhyaḥ
Ablative	ṛtupātrāt	ṛtupātrābhyām	ṛtupātrebhyaḥ
Genitive	ṛtupātrasya	ṛtupātrayoḥ	ṛtupātrāṇām
Locative	ṛtupātre	ṛtupātrayoḥ	ṛtupātreṣu

Compound ṛtupātra -

Adverb -ṛtupātram -ṛtupātrāt