Civil defence drills under 'Operation Shield' were held in Gujarat on Saturday to prepare citizens and the administration for any eventuality, an official said.

Blackouts were also enforced during the drills, he added.

"In Ahmedabad, a civil defence drill was organized at Sadar Bazar Cantonment in Shahibaug. Under these drills, programmes like volunteer mobilisation, air raid simulations, communication system activation, blackout protocol, blood donation camp and evacuation procedures were held," an official release said.