Hi Anil,
You have this wrong second image because facebook get it from your page.
Here is this image and how you can change this image(but you can not to delete this image). http://prntscr.com/4euc1y/direct
Also you need make some changes:
1 Use following code for iframe(it's need to add some dynamic value in the url to update is every time you open share link):
pre
var time = new Date().getTime();
var html='<iframe src="//www.facebook.com/plugins/like.php?href=http%3A%2F%2Fappery.io%2Fapp%2Fview%2F177c5783-d9ff-48ca-a6cf-e6930d377119%2FOffers_Prepaid.html?time=' + time + '&width&layout=button&action=like&show_faces=false&share=true&height=35&appId=678315978907394" scrolling="no" frameborder="0" style="border:none; overflow:hidden; height:45px; width:200px;" allowTransparency="true"</iframe';
element.find('[name="share_html"]').html(html);
/pre
2 Use following code to add description and image to the share(to get your goal image first in facebook share options):
pre
<link rel="image_src" href="http://appery.io/app/view/95800416-80fd-4abd-bf67-c7b4e3c3f55b/files/views/assets/image/a_01.jpeg"
<meta name="description" content="Here is title for face book_2"
/pre
That's all. Regards.