Hi Patil
Kindly refer the SCN thread and SAP Note with same issue. I think you have to upgrade the service pack of MS SQL 2005.
Kindly follow the steps:
1. Stop the SAP instance.
2. Take the full backup of DB & SAP folders
3. Apply the latest service pack of MS Sql server 2005. refer the SAP Note for Service pack - 62988 - Service packs for MS SQL Server
4. Start the SAP instance.
Is SQL Server 2005 RTM supported with kernel 721?
BR
SS