State Minister Rumana Ali emphasised the government's commitment to ensuring transparency throughout the recruitment process
Sadia, 7, Sultana, 10 and Rifat, 4 were injured in the explosion at Dhaka's Chawkbazar area around 9.30am.
"The three were playing and mistook the bomb for a ball," Chawkbazar Police Station OC Azizul Haque told bdnews24.com.
Locals rushed the children to Dhaka Medical College and Hospital.
The three have minor injuries, according to OC Haque.