Declension table of avantaka

Neuter	Singular	Dual	Plural
Nominative	avantakam	avantake	avantakāni
Vocative	avantaka	avantake	avantakāni
Accusative	avantakam	avantake	avantakāni
Instrumental	avantakena	avantakābhyām	avantakaiḥ
Dative	avantakāya	avantakābhyām	avantakebhyaḥ
Ablative	avantakāt	avantakābhyām	avantakebhyaḥ
Genitive	avantakasya	avantakayoḥ	avantakānām
Locative	avantake	avantakayoḥ	avantakeṣu

Compound avantaka -

Adverb -avantakam -avantakāt