Hi satha,
You may be able to merge the two calendars within Outlook. To achieve this please review the following steps.
Export calendar information
1. Click the File tab.
2. Click Options.
3. Click Advanced.
4. Under Export, click Export.
5. Click Export to a file, and then click Next.
6. Click Outlook Data File (.pst), and then click Next.
7. Browse to CRM section and click the calendar folder that you want to export, clear the Include subfolders check box, and then click Next.
8. In the Save exported file as box, enter a folder location and file name, or click Browse to select a folder and enter the file name.
9. Click Finish.
NOTE Exporting calendar items makes a copy of the items, but does not delete the items from any calendar.
Import calendar information
1. Click the File tab.
2. Click Open.
3. Click Import.
4. Click Import from another program or file, and then click Next.
5. Click Outlook Data File (.pst), and then click Next.
6. Click Browse to select the file you created in the previous section, and then click OK.
7. Under Options, click Do not import duplicate items, and then click Next.
8. Under Select the folder to import from, click the Calendar folder.
9. Clear the Include Sub-folders check box.
10. Click Import items into the same folder. If you have multiple accounts, you might have different Outlook Data Files. Click the destination account where you want the calendar items to appear.
11. Click Finish.
Regards