Hello Sahitya , Yes it is necessary to bring cast certificate and income certificate for the counselling. In rules it is stricly mentioned that you have to bring this certificate.

Dont remember to renew your income certificate.

I hope it will help you.

Thanks.

Hey Sahitya! All important documents which are required for APICET document verification are 

• AP ICET 2019 Hall Ticket.
• Degree Marks Memos / consolidated marks memo.
• AP ICET 2019 Rank Card.
• Degree Provisional Certificate.
• Intermediate Marks Memo / Diploma Marks memo.
• S.S.C or its equivalent Marks memo.IX to Degree Study Certificates or Residence Certificate (in case where the candidate has no institutionalized education) or Residence Certificate of either of the parent in AP for 10
• IX to Degree Study Certificates or Residence Certificate (in the case where the candidate has no institutionalized education) or Residence Certificate of either of the parent in AP for 10 years excluding the period of employment outside Andhra Pradesh from the competent authority in respect of Non-Local Candidates.
• Income Certificate issued after 01.01.2014.
• Caste Certificate issued by competent authority.
• Aadhar Card (Xerox will also be returned after verification).