Tata Communications — fraud interview call resulting in loss of money request for refund for same

Hi,

This is nilanjan mitra here. I have received one mail today regards to an interview with tata group of companies ltd. (Attached the mail below) in the mail it has been told that an amount of rs.7999 has to be made which is refundable.
I contacted the person name mukund mahajan before making the payment he said me once the payment is made he will be sharing the other details related to interview pass and change of interview location and date.
Since in the mail it was written to complete the payment on 04/03/2019 by 2pm hence i had to hurry with the payment process. Once i done with payment i called him to confirm he said he will call me back in some time with confirmation but after few minutes he send me one message (Attached below screenshot) that i have to submit 7999+18%gst amount of rs.1440. He said me that the amount of rs.7999 will be credited by today end of day or max by tomorrow and asked me to submit again complete amount of rs.9439 again but i didn't submitted this amount as i was not having again around 10k to spend from my account.
I wanted to know from tata group team now is this a genuine interview call or a fraud one. As the way the mail is written anyone will understand this is a genuine mail like i did. If this is a fraud mail i want my money to be refunded back to my account as its my hard earn money. I will not able to survive for complete month if this has been cheated to me. My family condition is very poor and my father is hospitalized i can't afford to loose my hard earn like this. This is my humble request to please look into this at earliest and provide me a response.
I want my money to be refunded at any cost.
Below i'm sharing my account details and also the payment details screenshot that i have used to make the payment to the tata group of companies ltd.

My account no : [protected]
Ifsc code : citi0000004

Below is the account details which was shared to me to transfer the amount.

Account no : [protected]
Ifsc code : corp0000738

Thanks,
Nilanjan mitra