How do I get FORM-16

Yes you can still obtain form 16.. approach your employer for the same....

you have salary slips in hands, in absence of form 16, these slips are enough to file return, make total of all 12 slips and your form 16 amount is ready, as there is no tax deducted, so if you are liable to incometax, pay under self assessment and file ITR 1/2 as applicable.

Yes, Mr.Sharma is right as now no document need to attach with Income tax return form ,so you can follow this method.