My baby's usually is awake during the night and sleeps for only 4 hrs during the day. He will complete 12 months soon, is it normal?

Yes, it is normal. I have 2 kids and I've experienced different sleeping hours all throughout the day. It's a matter of how you adjust and let your child establish a sleeping pattern until they get used to it. It also depends on their activities for the day that would help determine their sleeping time.