diseños webwebsite design agencyattacks are the deadliest in Mumbai since November 2008 when 10 gunmen launched a three-day co-ordinated raid in which 166 people were killed.
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At the scene
Zubair Ahmed BBC News, Mumbai
Dadar is one of the old areas of Mumbai, in the middle of the city. The blast here happened in a very crowded area with lots of shops and residential buildings.
The blast here was not powerful. Police have said the explosion in Zaveri Bazaar was stronger.
Police say the timing of the blast - 1900 - is significant. This was the height of the evening rush hour - it was designed to cause maximum panic and casualties.
One person asked why Mumbai is always the target of attacks.
However, many of the people gathered here now are merely onlookers curious to see what has happened. People have come from nearby areas to see what is going on.
There is no evidence of real panic here.
But in other parts of the city, the story is grimmer. There is panic and people are rushing back home.
* Anger and curiosity in Mumbai
Prime Minister Manmohan Singh