Jatiya Oikyafront Convener Dr Kamal Hossain was scheduled to leave Dhaka for Singapore last night for treatment. Dr Kamal along with his wife Hamida Hossain will leave Hazrat Shahjalal International Airport on a Singapore Airlines flight at 10:30pm, said senior Ganaforum leader Ameen Ahmed Afsary. He said Dr Kamal, also Ganaforum president, might go to Thailand from Singapore for medical purpose. The Oikyafront chief will return home on January 27, Afsary said.