The suspects, all from London, face a number of counts including rape, sexual assault and making threats to kill the victim, from the southern city of Hyderabad.
They will appear at Westminster Magistrates' Court on bail on June 7.
Enkarta Balapovi, 53, a butcher of St John's Wood, north London, faces one charge of trafficking within the UK and five counts of rape.
Shanaz Begum, 56, a shop worker, also of St John's Wood, is accused of two counts of trafficking - the first into the UK and the second within Britain.
Shashi Kala Obhrai, 53, an optician, of Northwood, north west London, is charged with trafficking within the UK, actual bodily harm and making threats to kill.
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Balram Kumar Obhrai, 58, a computer entrepreneur from the same area, is accused of trafficking into the UK and making threats to kill.
Aleemuddin Mohammed, 44, a supermarket manager from Harrow, also in north west London, faces a similar count of trafficking into the UK and another of sexual assault on a female.
Shamina Yousuf, 42, a secretary, of nearby Edgware, is charged with trafficking into the country and ABH.
Police have yet to release details relating to the age of their alleged victim.