Hi Harjot,
This is Jonathan from Kontera. There's no problem using Kontera and AdSense together, in fact most of our publisher do so with great results.
However, just to clarify what Prakash was saying, while it's okay to use Kontera and AdSense together at the same time, it's against Kontera's TOS, to use Kontera and a competing In-Text network like Clicksor, AdBrite, or Infolinks at the same time.
This is because if two In-Text ad networks try placing an ad over the same word, only one will show up, and you'll never get an accurate picture of how well Kontera can work for you. However, that's only with competing In-Text networks, Kontera is 1005 compatible with all other forms of ads.
Thanks,
Jonathan Cohen
Kontera Community Manager