The following is a list of documentation available for GST registration for different businesses: 

Proprietorship

• PAN Card and address proof of proprietor

LLP

• PAN Card of LLP
• LLP Agreement
• Partners’ names and address proof

Private Limited Company

• Certificate of Incorporation
• PAN Card of Company
• Articles of Association, AOA
• Memorandum of Association, MOA
• Resolution signed by board members
• Identity and address proof of directors
• Digital Signature

The following can be shown as proof of address of a director:-

• Passport
• Voter Identity Card
• Aadhar Card
• Ration Card
• Telephone or Electricity Bill
• Driving License
• Bank Account Statement

Add on what serves as identity evidence, and you’ve got yourself a winner. A PAN card or an Aadhar card may be used to prove one’s identity. Any of the directors will display their voter ID, passport, telephone bill, power bill, and telephone bill as proof of address.