You can refer to some of the links below for details on the extent of damage caused.
We are co ordinating our efforts though the yahoo groups/mails and blog ( http://biharfloodrelief.blogspot.com/ ) .Our team members from the One Bihar Team are diligently working 24*7 for this operation and we desperately need some help from every quarter.
Do let me know if your organization or you as an individual would like to contribute for this humanitarian cause. Please let me know in case you are willing to support us in whatever way you can. We are also seeking contributions through Prayaas(http://www.prayaas.org/bankdetails.php) so please come forward and lend your valuable support.