Hi. Yes, you need to the degree certificate. There are no alternatives. Follwong documents are mandatory:

• AP ICET hall ticket
• AP ICET Rank card
• Degree marks sheet
• Degree provisional certificate
• Intermediate marks sheet
• SSC or equivalent marks sheet
• 9th to Degree Study Certificates or Residence Certificate (in case where the candidate has no institutionalised education) or Residence Certificate of either of the parent in Andhra Pradesh (AP) for 10 years excluding the period of employment outside Andhra Pradesh (AP) from the competent authority in respect of Non-Local Candidates
• Adhaar card

To know more, please click on the follwing link: https://bschool.careers360.com/articles/ap-icet-counselling

Thank You!