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Okay, edited once again. I hope its okay now.

Thank you and Have a great day.

@shivohum2015 I think there was a misunderstanding. The short description is below the product name, which based on PG 5-2, hunter cannot duplicate the Product Name and put it as Short Description.

For short description, you need to put a short description of​ the product.

Example
Product Name: Steemit
Short Description: A Social Media where everyone gets paid for participation

Whatever you said I have done that you can check both the product name and short description i made as Sigma 200-500mm F2.8 APO EX DGas told by you. What else I have to do please tell me clearly, I am not being able to understand what is PG 5-2 ?

The product name is correct but the short description you cannot put product name in it, that what I'm trying to explain. kindly refer to my example above.

5-2. Do not duplicate the product name or use any non-product-specific words in the field “short description.”
https://github.com/Steemhunt/web/blob/master/POSTING_GUIDELINES.md

I have not duplicated. You can check it again. I have updated it. Thank you and Have a great day.

Thank you for the edit, have a good weekend.