Yes, you can challenge for any shift.

The candidates can challenge the answer key, following which the final answer key will be released. The facility to raise objects will be available until September 10, 10 am. Candidates will have to pay Rs 200 per objection. The fee is non-refundable.  The payment of the processing fee may be made through debit/credit card/ net banking.

You can download your question paper and challenge by logging in with your credentials from here

https://testservices.nic.in/examsys/root/DownloadAdmitCard.aspx?enc=WPJ5WSCVWOMNiXoyyomJgCV8FnblijC/LgfnhSRLLM1NzZYph1GSqanSYz8mXgEt

Thank You.