Empire of Sand: Tasha Suri

Mehr is a girl trapped between two cultures. Her father comes from the ruling classes of the empire, but her mother's people were outcasts, Amrithi nomads who worshipped the spirits of the sands.
Caught one night performing these forbidden rites, Mehr is brought to the attention of the Emperor's most feared mystics, who try to force her into their service by way of an arranged marriage. If she fails in their bidding, the gods themselves may awaken and seek vengeance...

From British debut author Tasha Suri, Empire of Sand is a lush and beautiful tale set in a magical world inspired by medieval India.