Quikr — Fraud of 50k for job

I had applied for job on quikr.com for kotak mahindra bank. First time i had paid 1800rs as a registration fee than i have paid 4200rs for documents verification than i had paid 7200rs for job confirmation and they said they will courier me the job letter and yet didn't received. Than they had said for salary account opening in kotak mahindra bank with 10000rs and i had paid it. After that they said me to pay 14700rs for kotak life insurance i paid but got no information regarding this & till i had paid sum of 48100rs. Now, they said all the amount you have paid will be refundable in HR round on 24th may but said our PRM will not visit today because of other candidates then on other day they call me & said for visiting kotak branch on 27th may with their PRM & all my documents and now their other HR called me and said you have to pay 11500rs more for HR visiting charges. Now they saying to pay 11500rs today only.