Four suspected Indian Mujahideen activists involved in the 2010 Chinnaswamy Stadium blast case were picked up here on Thursday for questioning, police said.
Fifteen people were injured when two bombs exploded at the Chinnaswamy Stadium on April 18, 2010 on the eve of the Bengaluru-Mumbai IPL semifinal match.
Speaking to reporters in Bengaluru, Director General of Police Lalrokhuma Pachau said backgrounds of those picked up was being checked.
"Their backgrounds are being checked. After we come to some stage, we will tell you," he said, adding investigation is on.