Declension table of ?dṛṣṭavat

Masculine	Singular	Dual	Plural
Nominative	dṛṣṭavān	dṛṣṭavantau	dṛṣṭavantaḥ
Vocative	dṛṣṭavan	dṛṣṭavantau	dṛṣṭavantaḥ
Accusative	dṛṣṭavantam	dṛṣṭavantau	dṛṣṭavataḥ
Instrumental	dṛṣṭavatā	dṛṣṭavadbhyām	dṛṣṭavadbhiḥ
Dative	dṛṣṭavate	dṛṣṭavadbhyām	dṛṣṭavadbhyaḥ
Ablative	dṛṣṭavataḥ	dṛṣṭavadbhyām	dṛṣṭavadbhyaḥ
Genitive	dṛṣṭavataḥ	dṛṣṭavatoḥ	dṛṣṭavatām
Locative	dṛṣṭavati	dṛṣṭavatoḥ	dṛṣṭavatsu

Compound dṛṣṭavat -

Adverb -dṛṣṭavantam