I just observed from a few days that google analytics shows zero traffic while as i checked my adsense account there shows impressions , which means my site has visitors Can anyone suggest ?
That's a peculiar case you have there. If everything is well set up, I don't expect there to be any issues at all.
Google Analytics update it data every after 12 hours. So check your data after 12 hrs. If you did this then check your code whether it install properly or not because if some mistake is there in code then you are not able to get the data.