For correction you can edit the post.
Just before Reply button u can see "edit".......click on that n u can make necessary changes in your post.
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FM approval means ...New member / old member who has not yet scored 50 rating score ..there posts will go thru forum monitor check.
Forum...
more...

monitor will check n if no issue then they will approve n then only these posts will appear in public.
If Forum monitor finds the post is wrong /abusing / PNR no. posted openly ..such post will be removed by forum monitor directly before going public.
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If you get 6 ratings to your post in the form of --->Great/Thanks/Agree/ useful/ _/\_ ........then u will get one star to your post .
On getting 12 ratings you will get 2 stars
On getting 18 ratings you will get 3 stars.