Hi Manisha jaiswal
Create BAPI like this
| Step 1: Create structures for Importing and Exporting | Parameters. |
Step2: Create a function module and make it as remote enabled.
Step3 : Create a BO.
Step4 : Embed or insert RFC into BO so that it will be converted into BAPI.
for step by step procedure search in scn or google lot of thread o this topic...