[3] The blast occurred a day after the anniversary of the 1992 Babri Masjid demolition, in which a mosque was demolished at Ayodhya leading to nationwide religious riots killing over 2,000 people.
This is also the second terrorism-related incident in the city which was rocked by the serial blasts of 2006, in which 28 people were killed, it included an explosion at the Sankatmochan Temple, some two kilometres away.
[11][12][13] The bomb blast occurred at one of the steps of the Sitala ghat leading to the famous Sheetla Devi temple, which was surrounded by devotees and foreign tourists.
[15] The following day, Mumbai Police investigations showed that Pakistan-based Bhatkal brothers, Riyaz and Iqbal, the chiefs of the Indian Mujahideen (IM) being the brains behind the explosion, which was carried out by Dr Shahnawaz presently based both in Dubai and Pakistan.
[18][19] Early results revealed used of Semtex, a general-purpose plastic explosive containing RDX and pentaerythritol tetranitrate (PETN); however, the final report of the Forensic Science Institute, Gujarat is awaited.
[20] A writer for The Diplomat suggested that the blast not having occurred on the anniversary of Babri Mosque destruction on 6 December, and the shoddy design of the attack, were indicative of the weakening of the Indian Mujahideen due to police action.