Dear Student,

If you  have already pay the fees then you will get the successful transaction message if paid in online mode.You have to keep your fee receipt payment transaction details to show them at the reporting center.You have to then visit the reporting centres for document verification. you have to carry all your original documents along with two sets of xerox copies.The officials in reporting centres will verify the original documents and will submit the xerox copies You can read here the whole JOSSA counselling process in detail

https://engineering.careers360.com/articles/josaa-counselling