Anti-Slavery International issued a report on sexual trade or forced religious marriages. These practices, though ancient, persist in some regions of the world. In Southern India women are initiated as Davadasis. The name varies depending on the province. Davadsi consists of marrying girls to a deity. They are then assigned to sexual exploitation by the deity's priests or devotees.
In the 1980s the government outlawed Davadasis rituals. Though initiation rates are in decline, it continues clandestinely. A high proportion of Davadasis are recruited into the sex trade.
Davadasi is considered a form of slavery under the United Nations convention on slavery. It also qualifies under a series of gross human rights violations under various treaties, including the 1989 Convention on Rights of the Child.
For more information, please see the Anti-Slavery Report "India - Women in Ritual Slavery in Southern India: Devadasi, Jogini, & Mathamma in Karnataka & Andhra Pradesh"