You need to attest photocopies in original documents of Neet as per the rule. But not in every document. Original documents of your domicile certificate ,your medical certificate should be attested with a photocopy in the original. Also a sign with the stamp is required from the respective authorities in the documents. 

Hello sandhiya,

Yes, it is necessary to bring the photocopies of certificates which are to be attested compulsory. Then apart from the certificates you have to bring hall ticket of neet, admit card, result of neet/ rank letter. For further details visit the link given below,

https://medicine.careers360.com/articles/neet-counselling/amp

Thank you!

Hello, 

Yes, it is necessary to attest the photocopies of the original documents for the NEET counselling process. An attested photocopy is a verified photocopy which indicates that all your documents are original and relevant. It can be either self-attested or done by a government officer. Therefore, it is necessary to attest the photocopies of your original certificates and documents to avoid any delay or queries during the counselling process. 

Hope this helps. 

Good Luck.