Declension table of ?santrasta

Masculine	Singular	Dual	Plural
Nominative	santrastaḥ	santrastau	santrastāḥ
Vocative	santrasta	santrastau	santrastāḥ
Accusative	santrastam	santrastau	santrastān
Instrumental	santrastena	santrastābhyām	santrastaiḥ santrastebhiḥ
Dative	santrastāya	santrastābhyām	santrastebhyaḥ
Ablative	santrastāt	santrastābhyām	santrastebhyaḥ
Genitive	santrastasya	santrastayoḥ	santrastānām
Locative	santraste	santrastayoḥ	santrasteṣu

Compound santrasta -

Adverb -santrastam -santrastāt