I think the SJD is the cause of whole incidence because they first declared to celebrate the Uttar Bharatiya Din in Mumbai and asked to flood Mumbai by UP people on that day. Why they want to do this in Mumbai? they should do it in UP; but their intentions are bad. Also they fear to be beaten up by Mayawati/BSP caders in UP. So the solution should come from their side by taking the announcement back and not doing any further declaration like this to provoke violence From PVD