Restore Search Content DB under search site collection in SP2010

Below is my scenario:-

1. I have a main application(http://ift.tt/1HJaH2o) and it has its own content DB.


2. I have search application inside the main application as a site collection(http://ift.tt/1z4F2h6) and it has its own search content DB.


3. I need to deploy the above in my client's server, so i have taken the WSP package of the whole application and content DB of main application and search application.


4. I deployed the main application and content DB in client server and it is working perfectly.


5. 
   

   And i created a site collection as(http://ift.tt/1HJaHiE) and trying to restore the search content DB using the below script:-

   
   

   
   Restore-SPSite -Identity http://ift.tt/1HJaHiE -Path "BACKUP_LOCATION\SEARCH_CONTENTDB.bak" -force
   
   

Once i run this in SharePoint Powershell as an Administrator, I get the below error:-

The operation that you are attempting to perform cannot be completed successfully. No content databases in the web application were available to store your site collection. The existing content databases may have reached the maximum number of site collections, or be set to read-only, or be offline, or may already contain a copy of this site collection. Create another content database for the Web application and then try the operation again.

Please let me know if am missing anything or if am deploying wrongly or i should do any specific configuration changes.

Your help is highly appreciated.

Thanks, Hudson