Q. Can an Avel get an aliya on Tisha Beav?
A. See question 3264 above regarding the attendance of an Avel to shul during Tisha Beav,
Nitei Gavriel (Ben Hametzarim 2: 60: 11) quotes a number of Poskim that permit an Avel to receive an aliya and even have Maftir or be the Baal Koreh during Tisha Beav (Machazik B’rocho 554, Lev Chayim 2: 167, Shaarei Rachamim 8: 158).
The main reason given is that on that day everyone is also in mourning.
Rabbi A. Bartfeld as advised by Horav Aharon Miller Shlit’a