Hi Mahendra,
as rightly expressed by the other forum members search in SAP help, in SCN before asking this kind of general questions.....You need to explore and google it.....
go through the below links which can help you out...
MPS :
Master Production Scheduling (PP-MP-MPS) - MRP Procedures - SAP Library
SOP :
SAP SOP - SAPs'WORD - We SAP For Your Cause
If you have any specific questions revert...
Thanks
Kumar