Indigo Airlines — fake calls and asking to pay am on amount

Address: Bangalore, Karnataka, 560100

Hi sir/madam,

This is yasaswee from bangalore i got a call from am person called neha [protected] and recruiter for indigo airlines and they asked me to feel of rs 2000 to gaurav and got details in msg. And mail from hrteam. [protected]@outlook.com again later they asked to pay 6000 for background verification later 23000 for training and they sent me mail after every payment stating it is refundable amount in my 1st month salary and after paying 23000 to summy raj and i got offer letter in a soft copy and now again they asking me to pay 25000 to get hard copy and for insurance facility etc and its not refundable. Please help me on this