The attacks drew widespread domestic and international condemnation, with leaders and organizations expressing solidarity with India and urging justice for the victims.

Rakesh Maria said that the Anti-Terrorism Squad (India), would soon release sketches of culprits, as the footage obtained from the closed-circuit television (CCTV) cameras at Opera House site was under scrutiny.

[3][4][18][19] Prime Minister Manmohan Singh and Indian National Congress leader Sonia Gandhi visited Mumbai the next day and met with those injured in blasts at Saifee Hospital.

[nb 1][22] Speculation was also rife that the hard-line Taliban Mumbai underworld could be behind these blasts, in the light of the killing of journalist Jyotirmoy Dey, as well as the attempted assassination of Dawood Ibrahim's brother, Iqbal Kaskar on 3 May 2011.

[24] The slain MiD DAY crime journalist Jyotirmoy Dey had previously reported that a huge cache of 35 detonators, gelatin sticks and large quantity of ammonium nitrate explosives had been seized on 20 May 2011 from Umarkui and Sayli village in Silvassa.

[33] On 16 July, Maharashtra ATS Chief Rakesh Maria said that, based on forensic opinion and visit to the various sites, the possibility of a suicide bomber was being ruled out.

[38] CCTV footage showed one person with long hair riding a stolen red colour Honda Activa, entering the crowded lane, taking two left turns, placing the scooter at the spot of the explosion and walking off.

The duo received sim cards from the co-accused Naqi Ahmed, who was arrested by the ATS in January 2012 for possessing SIM cards obtained with fake documents, following which Naqi admitted his role in the blasts and also admitted working with Indian Mujahideen's founder member Yasin Bhatkal in arranging accommodations for the bombers.

[43][44] On 4 February 2014, Maharashtra ATS was handed over the custody of Indian Mujahideen mastermind Yasin Bhatkal for probing the 2011 Mumbai Bombings Case.

[45] On 16 July 2014 Mumbai ATS arrested Abdul Mateen Fakki from Goa’s Dabolim Airport, while he arrived from Dubai by flight.

He was admitted to the Lokmanya Tilak hospital, Sion, Mumbai, following which he died quickly due to blood clots in brain and a heart attack.

An official said that it would have been insensitive to take the plane to Mumbai at this time when such a tragedy had occurred and that the decision had also been taken in view of security concerns and so as not to put added pressure to provide extra cover for the aircraft.

[51] Following the Mumbai terror attacks the Directorate General of Shipping (DGS) banned the use of Thuraya & Iridium satellite phones and infrastructure.

[54][55] Indian Prime Minister Manmohan Singh also condemned the bombing, and called on Mumbai citizens to remain calm and show unity.

[56] Other politicians, such as Sonia Gandhi, chairperson of the Indian National Congress and Nitin Gadkari of the BJP expressed their anger and offered condolences to the families of the bombing victims.

[60] Home Minister P. Chidambaram left Delhi for Mumbai on the same night and visited the three blast sites, met the injured in the hospitals, and interacted with the family members of the dead.

[61] Local politician, Manohar Joshi of the Shiv Sena, urged the government to "take immediate steps and find out who are people behind the blasts.

[63] His comments drew flak from some quarters of the Indian political spectrum, who criticised him for equating the Mumbai attacks with those in Afghanistan and called it an insult to those killed in the blasts.

[64][65] Chairman of the moderate Hurriyat faction Mirwaiz Umar Farooq condemned the Mumbai blasts saying such incidents are orchestrated to derail the dialogue process between India and Pakistan and that those involved in the killing of innocent people are enemies of humanity'.