@Vinod Kumar - I have faced 2 Due Diligence PRocesses, and these are some of the requirements that the Auditors ask for -
1. Employment contracts and agreements: of Core Team / Key Managerial Positions.
2. Organizational chart: Generally it is Founder + 3 or Till Sub Department Head Level. If you are able to have it till the last personnel - it is still better.
3. Employee Handbook (Policies & Processes), generally along with other HR Policies, they will look at Fair Employment Practices, Anti Bribery Policy, Whistle Blower Policy, PoSH Policy.
4. Hiring process, Contracts and Key Metrics.
5. Performance management: Process, Numbers, Spread and Payout.
6. Payroll records
7. Benefit plans
8. Compliance records, as well as undertaking
9. Background checks
10. Training and development - Processes, Types of Training, Output metrics (Impact)