Easiest way I know of is to use this link from rsaeon and go through the pages looking for the green coupon tag.guys how to scan for Discount Coupons for Computer components
While I'm here, here is a direct link that I check daily for computer components sold by Appario under 25k, sorted high to low: https://www.amazon.in/s?me=A14CZOWI0VEHLG&rh=n:1375344031,p_36:-2500000&s=price-desc-rank