Declension table of ?tāttvika

Masculine	Singular	Dual	Plural
Nominative	tāttvikaḥ	tāttvikau	tāttvikāḥ
Vocative	tāttvika	tāttvikau	tāttvikāḥ
Accusative	tāttvikam	tāttvikau	tāttvikān
Instrumental	tāttvikena	tāttvikābhyām	tāttvikaiḥ
Dative	tāttvikāya	tāttvikābhyām	tāttvikebhyaḥ
Ablative	tāttvikāt	tāttvikābhyām	tāttvikebhyaḥ
Genitive	tāttvikasya	tāttvikayoḥ	tāttvikānām
Locative	tāttvike	tāttvikayoḥ	tāttvikeṣu

Compound tāttvika -

Adverb -tāttvikam -tāttvikāt