India is facing terrists bomb attacks since past two decades. The most targeted city happens to be Mumbai, then Delhi and Hyderabad take the second and third place. Here's a list of bomb blasts in the past twenty years.
Mumbai - 12 March 1993 - 257 killed - 713 injured. Mumbai - 13 March 2003 - 10 - 70 Mumbai - 6 July 2006 209 - 700 Mumbai - 25 Aug. 2006 - 52 - 100 Mumbai - 26 Nov. - 166 - 308 Varanasi 7 Dec. 2010 - 1 - 25 Pune - 13 Feb. 2010 - 17 - 60 Assam - 30 Oct. 2008 - 77 - 100 Malegaon, Modawasa Gujrat - 29 Sept. 2008 - 6 - Delhi - 13 Sept. 2008 - 26 - Ahmedabad - 26 July 2008 - 57 - Jaipur - 13 May 2008 - 68 - Hyderabad - 18 May 2007 - 11 - 100 Hyderabad - 25 Aug. 2007 - 42 - 54 And now again in Mumbai on 13 July 2011.