Demand and harassment by Uc Solution for form filling work

I got a call from UC SOLUTION COMPANY. she said we have work for you and 10 days agreement 1000 form and you will get 20000 thousands a d you paid to 5200 after completed your work and I completed the work very hardly and I submitted the work after I submit the work one day after I got a mail UC SOLUTION COMPANY LOYER FROM AURANGABAD he said you will pay to 5200 amount to get out of these situations I committed and after 10 min he again call me and said you will pay 7950 rupees 5200 and 2750 as a case closing I paid he said when you paid the amount you will get NOC letter I paid and I asked the NOC letter he said you will get confirmation call to my senior loyer retais loyer call me and he put the conference call his senior loyer he said if you want leave the company will you pay 18950 rupees other wise we will see you in the cort and you pay to 1025000 sir please get our for these situations they are harrassment for me please sir help me get out of these and take a action