Can someone pls tell me what I need to do to place an add in article secton of my blog?Those which appears in the middle of article? Regards Sinn
You can add either ad unit or link unit (text only) between your blogposts but you shouldn't disguise them making it look like it's not google ads Happy Blogging.
If you are using blogspot, you can use the reference here which I came across recently. Hope that helps.
Your blog is using which platform..blogger or wordpress? Personally, I don't recommend this. It may increase the clicks but, it will irritate the readers and you'll lose lots of returning visitors.