Declension table of nirīkṣaka

Masculine	Singular	Dual	Plural
Nominative	nirīkṣakaḥ	nirīkṣakau	nirīkṣakāḥ
Vocative	nirīkṣaka	nirīkṣakau	nirīkṣakāḥ
Accusative	nirīkṣakam	nirīkṣakau	nirīkṣakān
Instrumental	nirīkṣakeṇa	nirīkṣakābhyām	nirīkṣakaiḥ nirīkṣakebhiḥ
Dative	nirīkṣakāya	nirīkṣakābhyām	nirīkṣakebhyaḥ
Ablative	nirīkṣakāt	nirīkṣakābhyām	nirīkṣakebhyaḥ
Genitive	nirīkṣakasya	nirīkṣakayoḥ	nirīkṣakāṇām
Locative	nirīkṣake	nirīkṣakayoḥ	nirīkṣakeṣu

Compound nirīkṣaka -

Adverb -nirīkṣakam -nirīkṣakāt