United Automobiles — asking money for service tax 5000 to get my salary after completing the work

I have applied for the job that is posted in the quikr united automoblies, the person i spoke to me is sanjana from united works only, gave me 89 images told that data present in the images need to typed in excel sheet, so i have done the job within the time and submitted, got an accuracy of 91%, before submitting the work i have asked her is your company is asking for money to get salary. That time she told that nothing is like that... But after submitting they are asking money for service tax which is 5000... If don't pay that amount they are not providing my salary.. Please help in getting my salary... Hope you will help me her ph is sanjana - [protected]