Declension table of āvantaka

Masculine	Singular	Dual	Plural
Nominative	āvantakaḥ	āvantakau	āvantakāḥ
Vocative	āvantaka	āvantakau	āvantakāḥ
Accusative	āvantakam	āvantakau	āvantakān
Instrumental	āvantakena	āvantakābhyām	āvantakaiḥ āvantakebhiḥ
Dative	āvantakāya	āvantakābhyām	āvantakebhyaḥ
Ablative	āvantakāt	āvantakābhyām	āvantakebhyaḥ
Genitive	āvantakasya	āvantakayoḥ	āvantakānām
Locative	āvantake	āvantakayoḥ	āvantakeṣu

Compound āvantaka -

Adverb -āvantakam -āvantakāt