India, Oct. 24 -- Indian-origin billionaire Pankaj Oswal feels "immensely guilty" about sending his elder daughter Vasundhara to Uganda, where she has been imprisoned for over three weeks now, Riddhi Oswal has told HT.com. In fact, the businessman and his wife, Radhika Oswal, have locked themselves in a "secret location" as they work to secure their daughter's release.

Vasundhara Oswal was detained by a group of armed police officers in Uganda on October 1, over what officials claim is an investigation related to a missing person. Her family claims the charges are trumped up, and the man she is accused of kidnapping is alive and well in Tanzania.

Vasundhara had been in Uganda for three years, developing her family's factory in the East ...