You should book your ad at least before a week to advertise on the front page.
Yes you can book for advertising for a whole year.
We email the e-copy of the newspaper on the day the advertisement has been published and when we send the invoice, we attach a copy of the magazine along with the invoice.
Depending upon your target audience you can choose your month to advertise. For example, holidays are good for consumer products ad and rest of the year for Business ads.
The magazine ad will be accessible for one print cycle. A magazine is published every month of the year. You can choose in which edition you want your advertisement to be published. The advertisement will remain in that particular magazine for that edition only indefinitely.