Why Ads Are Different

what difference you find on ads? can you please explain so that I may also get to know?

When I am accessing it through google it's showing another ad "To know how download this free guide now" apart from the Bajaj Allianz ad.

Dear Chinmoy every time adsense rotate ads they show ads according to the content and also locality, supose you open this artice in USA do you think bajaj allianz ads will be shown there which will not be there use.
You can open your articles various times on your system and you will find various ads

Whatb is the effect on Author on displaying different ads in an article ?Is ads declare popularity?

Thanks for your clarification!

anbuL wrote:
[quote]Whatb is the effect on Author on displaying different ads in an article ?Is ads declare popularity?[/quote]

It does not effect on author. Google will show the ads relevant to your browsing habits and related to the article. It does not show the same ad every time. It has a different mechanism to show the ads.

Soubhagya Das is correct. The goodle search is very wide. Moreover each word is significant in search. When search words are two or three, the results will be according to each word. If you want all words in a phrase to be considered, you have to resort to advance search.