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Akshay Mourya 6Akshay Mourya 6 

Hi, I have created app package in dev org, is there any way to use this app package to publish it on app exchange of salesforce in partner community.

SwethaSwetha (Salesforce Developers) 
HI Akshay,
To get your app on AppExchange, you’ll need to:
>Connect the packaging organization to AppExchange.
>Set up a provider profile.
>Create a listing for the app or component.
>Submit the app or component for security review.
>Publish the listing on AppExchange.

Detailed steps on https://www.adhiman.com/publishing-an-app-on-appexchange/

I also recommend reviewing https://developer.salesforce.com/forums/ForumsMain?id=9062I000000IVCv 
https://developer.salesforce.com/docs/atlas.en-us.packagingGuide.meta/packagingGuide/isv_partner_resources.htm 

NOTE:  Becoming an ISV is free of cost. To go live on the AppExchange (make your listing public), your app needs to pass a security review by Salesforce which is priced.

Hope this helps you. Please mark this answer as best so that others facing the same issue will find this information useful.Thank you