If you are an individual, you need to submit any sort of identity proof (NIC, Driver’s license, Passport), a billing proof (any utility bill) and evidence of income (salary slips, bank statements etc.) along with the details of the asset that need financing.
For any registered business, you need to submit the business registration documents, evidence of business financial position (audited financial statements, Income tax documents, bank account statements depending on the availability) along with the details of the asset that need financing.