Revised form 16

Hi Everyone, I am having an issue with my previous employer for not revising the form16 ( I have worked there for two month in Financial year 2013-2014). He has issued a form16 with incorrect amount where he shown ‘House Rent Allowance’ is Taxable Amount while it was exempt. He has not considered my Rent slip. When I contacted my previous employer, Payroll department is refusing to revise the Form-16 as they are saying that it cannot be revised. I am not saying to reverse the deducted tax amount but Taxable Income should be revised due to HRA in form-16. Please let me know whether Form-16 can be revised or not. Thanks, Umesh Kumar