-chari, -swari and -skhali

Some spell Khagrachari, Dhakeswari and Maheskhali while some others prefer Khagrachhari, Dhakeshwari and Maheshkhali. The maps prepared by the governemnt agencies show that the first series correctly spells the placenames. In old documents, h was almost always dropped in -swari and -skhali. The Banglapedia has Khagrachhari, but it is Khagrachari in the Wikipedia.