Yes, Mahesh is right 100%. You cannot write the same review in both the sites. Though both the sites have business sections both are different sites. Though both are sister sites, each one is different from the other.
So post your reviews, but ensure it is written differently, so that you dont get into copy right issues and also you get traffic and adsense. Do not copy reviews. At present we are not giving cash credits in IRC, but for the reviews of business ISC is giving cash credits.