Al Hussein overcame the hardships of war, injury and displacement to participate in para-swimming at Rio 2016 and then at the Tokyo Games three years ago.
Dharmadhikari produced a fight-back after conceding the opening game to triumph 18-21, 21-12, 21-12 against Kolhapur's Prerana Alvekar to seal her place in the last eight.
The former Barcelona star was deemed guilty of breaching FIFA's rules relating to "offensive behaviour, violation of the principles of fair-play and misconduct of players and officials".
Travel difficulties meant Botswana arrived in Francistown from Mauritania only seven hours before facing record seven-time AFCON title-holders Egypt, captained by Mohamed Salah.
England international Gallagher flew back to London but was not included in the Chelsea squad that lost 2-0 at home to Manchester City on Sunday.