After Installing Ubuntu 13.04 Not able to see options for Windows 8 and Ubuntu at Start Up

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http://askubuntu.com – Today i installed Ubuntu along with Windows 8 on my HP laptop using DVD Drive (Boot from Internal DVD). During installation it said something like "You need to have space of 1 MB or so for booting else also you can install it might give errors later" Issue: Now i wont get option when systems boots up it directly goes to Windows 8. I have C Drive 320 GB for Windows, D as 8 GB for Swap, F as 16 GB for /home and 30 GB for Windows recovery. Please help me, do i need to try boot repair with Try ubuntu option that i get when i boot from DVD? Waiting for response. I guess issue is related to MB (HowTos)