Swathi,
This question does not seem to be related to your original question. I suggest you open a new thread.
I further suggest you first review SAP online help about planning strategies before posting more questions about these basic functionalities.
Strategies for Make-to-Stock Production - Demand Management (PP-MP-DEM) - SAP Library
Start here, expand MTS, study all. Then, down to "strategies for planning components". Expand, study all. Continue down the list until you have reviewed all pertinent Strategy help.
Once you have digested this information, come back with any questions that remain.
Best Regards,
DB49