Mufti Abu Bashir, the alleged mastermind of the serial blasts in Ahemdabad, has admitted that he was involved in the July 26 bombings that left 55 people dead, crime branch sources said on Tuesday.

Bashir, whose arrest was announced on August 16, is currently in 14-day police custody and is being grilled by the city crime branch officials.

“So far in his interrogation, he has confessed to his involvement in the Ahmedabad [Images] blasts,” the officials said.