Do you have tax returns ? if yes then you can upload it as well.As mentioned,Salary certificate will be included as the employment evidence. With regards to payslips, i can get for past 3 years (stamped by HR) out of 8 and will also try to provide the bank statements corresponding to the payslips provided. All these 8 years are claimed against 1 employer (current employer) only. Will that be sufficent?