Hi Shashi,
I'll do the development using below steps:
1. Create a Project.
2. Create Parent Report.
3. Create Child Report.
4. Drag the Child report in su-report area.
5. Use local Data Source [Hard Code in each report]. Do not use Shared Data Source.
6. Compile the report. If it is working as per requirement. THEN
7. upload the child report to the SSRS Server manually.
8. Upload the Parent Report using MS CRM Report wizard.
9. Test it from MS CRM.
10. It will definately work.
And if you are getting any errors see the For Error Description in Error Log:
Log on to SQL Server, go to installation folder of SQL Server Reporting Services. Open the latest log file and see the error description.
EG: C:\Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\LogFiles
Hope this helps.
Thanks, Ranjitsingh R | http://mscrm-developer.blogspot.com/ | MS CRM Consultant