ow to reapply for google adsense

i have applied for google adsense and at that time i was using a free domain but now i used a proper paid domain can anyone help me how can i reapply for google adsense thanx in advance

You could've searched google instead of typing it here

i did but found nothing

Just login to your gmail account, which you used to apply for adsense at 1st. Then open the adsense page and it'll usually login automatically, which happened with me, not sure with everyone though. You'll get the form already filled, yet you can edit the field. Now, your free domain will be placed in the URL box and you just remove that and paste your current URL and make any changes, then submit. Done.