bomb blasts have become a common things in our metros.. but although the citizens can make graeat help in tracing the suspicious persons but its very important that the police dept should make his intelligence wing much wider and accurate.. so that incidents like this can be averted.... the shop keepers and men working in buses and trains should always keep an eye on person.. who leave some baggages etc... and go...
since police dept is working on its way.. its better we citizens be carefull.. thanx bye