Returning to IT After Business Partnership: What Documents Do I Need for Background Verification?

Hi Team, I worked in IT 5 years ago and then started working with my friend's business as a partner. Presently, I am planning to move back to IT again as we are going to close the business unit. Now, to join the new company, I have all the documents from before 5 years. What are the documents I need to have for the company where I am a business partner that I can produce at the time of joining?

Thanks for your help in advance.
Regards.

Ask your other business partner to provide the service certificate for the 5 years you were with them. Also, if you were receiving a salary as a partner, make sure the salary slips or salary certificate are also obtained. I guess this should help.