Career Builder — Job

I have received a call from career builder job portal tat i have selected for indigo job opportunity and i need to pay 1750 to complete first round after which she has called again to say that i have to pay 6100 to complete the document verification. Kindly help me whether this is true or not. I think this is a fraudulent activity but not sure
I'm also paid 1650 in first round after few days I'm doubt so I'm report it
Kindly inform that this true or fake