جَاءَتْ هِنْدُ — Hind came: nominative subject with ḍamma but no tanwīn.
رَأَيْتُ هِنْدَ — I saw Hind: accusative object with fatḥa, no tanwīn.
مَرَرْتُ بِهِنْدَ — I passed by Hind: genitive with fatḥa in place of kasra, no tanwīn.
Both هِنْدٍ and هِنْدَ are valid under this special allowance. Neither reading should be marked wrong without specifying the declension choice.