Vistara — Scam

I m student in north India in Punjab. i want an Internship in company i registered in different websites A lady called on Tuesday April by name Sneha Gambhir, she said we give you the internship in our Vistara airlines for business analyst job . she said you have to pay the registration fees Rs 2000 after that you have to give the aptitude test for next round.
then she said after giving test send me the screenshot of the marks obtained if qualified then also you have to eligible for next round i.e., HR telephonic interview . after that the HR called me Ravi Kumar for the interview he said you have to pay 5500 for the next round qualification i paid the amount and he said you are now to pass to the next round. then he said to me to may the 10500 for NOC and for offer letter to enter in the airport . i said i m not going to pay any amount to you i m not taking any internship please refund my amount . he said ok you have to pay 2100 for the cancellation of registration and refunding of amount. i said i m not going to pay any amount please refund my money he said its not possible you have to pay first . he is talking to me very rudely and cut the call.
after 1 day again a lady called me Aishwarya for the refunding of money she said to me if you want your money back you have to pay 550 i paid then again she tell that the account is not taking the amount you have to give 1050 for the activation of account . again she telling you have to pay 1550 for the refunding its the last amount . i want my moey back 9100
please i request to the Indian forum to take the step against these type of scam and want my money back because its my necessity i m a student.
Dear sir/madam of air Vistara PLEASE I REQUEST YOU TO PLEASE get back my money .
regards
Lakshena