Hi Suresh,
You may need to have two additional fields "Currency Index" and "Originating Currency Index", outside the window.
1. Go to "Tools>>Link Format Selector".
2. Click and Hold the field Unit Cost and drag the cursor to the Currency Index field.
3. Click and Hold the field Originating Unit Cost and drag the cursor to the Originating Currency Index field.
After you do this, you need to set the currency index fields based on the currency table MC40200.
Based on this, it will display the corresponding currency symbol.
Hope this helps and let me know if you are looking at something else.