Newspaper circulation is number of copies printed whereas Readership is number of people who read it. So a single Newspaper in a household is read by the entire family. 

Unless specific data is available, one can assume readership of a Newspaper to be 3 times that of its circulation. 

1. Publication reserves the right to put multiple jackets,flaps/any other competitors ad on the same or facing page
   
2. Shared rate might change after the ad is submitted as Newspapers operate brand specific and category specific rates
3. Your ad might not get published even after the booking. This happens when two or more ads fight for the same space. The bigger size ad is given preference in these cases. You will be informed in advance of any such conflict and alternate options would be offered. You can also choose to cancel the ad at no fee