Its just takes 10 mins work.
1. Login to Facebook with your account.
2. Click on the Events.

3. Click on the Birthdays.

4. Click on Export birthdays in the bottom of the Page.

5. Copy the URL.

6. Goto Google Calendar. Login in with your account.
http://www.google.com/calendar
7. Add the Copied URL to your google calender.

8. Click on Add Calendar

9. Now your facebook birthdays are in sync with facebook. Next, Your should enable mobile alerts.

10. Enter your mobile no and click on "SEND VERIFICATION CODE", in few mins you will get the code. Enter the code and click on Finish Setup.

11. Goto Friends Birthdays.. Click on Calendar Settings.

12. Add a remainder. Enable SMS and EMail .
13. From next min you will get mobile alerts about your friend birthdays... Enjoy wishing your friends....
1. Login to Facebook with your account.
2. Click on the Events.

3. Click on the Birthdays.

4. Click on Export birthdays in the bottom of the Page.

5. Copy the URL.

6. Goto Google Calendar. Login in with your account.
http://www.google.com/calendar
7. Add the Copied URL to your google calender.
8. Click on Add Calendar
9. Now your facebook birthdays are in sync with facebook. Next, Your should enable mobile alerts.
10. Enter your mobile no and click on "SEND VERIFICATION CODE", in few mins you will get the code. Enter the code and click on Finish Setup.
11. Goto Friends Birthdays.. Click on Calendar Settings.

12. Add a remainder. Enable SMS and EMail .
13. From next min you will get mobile alerts about your friend birthdays... Enjoy wishing your friends....