I had filed income tax for the FY(2007-2008) and AY 2008-09. I had a income tax return of 17k. The company paid 20600 as professional tax (in form 16). I had filed return based on form 16 provided by the company. In between i changed home and company. in 2014 i came to know i had a tax demand of 3600 and when i check through the details i found that my company did not paid my tax and given a fake form 16. The company run by a korean enterprenaur. What i have to do in this case? They already deducted this amount and i had all the documents. Please advice.