Hours after the twin blasts on Saturday evening, the Hyderabad police recovered a live bomb from Dilsukhnagar area and defused it in time, averting another tragedy.
The bomb was planted underneath a foot-over-bridge with a timer set for 9.30 pm, police sources said.
The near-simultaneous blasts at Lumbini Park and Gokul Chat Bhandar were triggered by cell-phone timers, City Police Commissioner Balwinder Singh told reporters.
So far, 11 bodies have been identified and five of them are women. One of the deceased was a house surgeon of Osmania Medical College who hailed from Prakasam district.
Meanwhile, Telugu Desam Party president and former chief minister N Chandrababu Naidu alleged the incidents were a result of intelligence failure.
Bharatiya Janata Party leaders M Venkaiah Naidu and B Dattatreya strongly condemned the incident and said it was time for the governments to act tough against foreign terrorist groups.
They accused the Congress government of adopting a soft approach towards terror groups which have been targeting the city.
State secretary of Communist Party of India-Marxist B V Raghavulu said the blasts appeared to be a pre-planned terror attack.