Non payment of income tax

If ur liable to pay tax on amt recd from Employer . You have right to ask employer  for Filing TDS returns for that year.

I may have the right to ask the employer but if he still does not respond what do I do ?

You need to report the matter to the jurisdictional TDS ward of the Department where your employer company is assessed as far as TDS matters are concerned.

But as you said you received Form 16. There are spaces for displaying the PRNs of quarterly TDS returns filed against which taxes have been deducted. What is written in those spaces/columns ?

Regards,

Ramesh

are you in a position to respond to my observation. It would have been a learning experience for me.

Regards,

Because ur Ex- Employer is Government Department .

Fill RTI for this. this is definitely workable.

as pointed out by Dipjyoti, file complaint with jurisdictional ITO-TDS alongwith proofs to show the apparent cheating being committed by your employer. 

Documents should generally include, your salary slips, Form 16, your Form 26AS and if possible, a copy of TDS return filed by your employer.