All the religions talk of peacefull co-existance. This is clearly the act of anti-social elements. They want to disturb the society. . It could be political parties, terrorist's are any one. Govt and Inteligence agencies should play thier role in a better way. Compare to the inteligence agencies of the West, and the governments there, our governments fail always. These law keeping agencies themselves are corrupt. Its hihg time Citizens feel their responsiblity and change the system.