Declension table of ?vṛṣṭimat

Masculine	Singular	Dual	Plural
Nominative	vṛṣṭimān	vṛṣṭimantau	vṛṣṭimantaḥ
Vocative	vṛṣṭiman	vṛṣṭimantau	vṛṣṭimantaḥ
Accusative	vṛṣṭimantam	vṛṣṭimantau	vṛṣṭimataḥ
Instrumental	vṛṣṭimatā	vṛṣṭimadbhyām	vṛṣṭimadbhiḥ
Dative	vṛṣṭimate	vṛṣṭimadbhyām	vṛṣṭimadbhyaḥ
Ablative	vṛṣṭimataḥ	vṛṣṭimadbhyām	vṛṣṭimadbhyaḥ
Genitive	vṛṣṭimataḥ	vṛṣṭimatoḥ	vṛṣṭimatām
Locative	vṛṣṭimati	vṛṣṭimatoḥ	vṛṣṭimatsu

Compound vṛṣṭimat -

Adverb -vṛṣṭimantam