I want to know can we use adwords campaign to get traffic on my website only for Adsense Earning. If we violate anything in adword then can adword campaign affect my adsense account (is there any possibility to get ban or disabling of my adsense account)?
Not recommended in my opinion. I know a company who did it a few years ago, and one day the checks stopped coming, plus their AdSense and AdWords accounts were shut down. Better focus on long sustaining business. AdSense Terms and Conditions: "6...Google may at any time, in its sole discretion, terminate all or part of the Program, terminate this Agreement, or suspend or terminate the participation of any Property in all or part of the Program for any reason..."
Google can only disable your adsense account if it poses risk to advertisers( i.e Adwords users), the "risk" is best known to them. That was what they told me when my account was disabled.
This was effective a few years ago, it's known as Adsense Arbitrage, but from what I've heard, it doesn't work anymore since the algorithms got smarter and you'll just lose more money on AdWords than make on AdSense...