Bashar is isolated at home, but hoping to return to work in time for the Bangabandhu T20 Cup scheduled for later this month.
"I was really careful, but still I got infected," Bashar told Bangla Tribune. "There's nothing we can do. The virus won't let go of anyone. I felt feverish from Monday, and then it got to 102 degrees. It continued into Tuesday, so I tested on Wednesday morning and received the result in the evening."
Bashar is one of two senior selectors employed by the BCB, and has been a constant during training and matches at the ground over the last few months.
In recent weeks, Abu Jayed, Saif Hassan and Mashrafe Mortaza, as well as a few cricketers and coaching staff from the Under-19 camp have all tested positive.
According to the official figures, there have been 425,353 Covid-19 cases in Bangladesh, with over 6000 deaths.