Indian Army — Product by from OlX and indian army guy fraud asking money for verification

Have buy one activa 5g 2018 model from olx and was Indian army guy and i have called for verification from manager telling to pay money for verification and then aksing for continue payment and tellig there is invalid verification and asking for money
And also telling at last give gst moneys and all the above process takes my Rs 200721 and then telling you will get this amount jn 5 min 47 second pay more and clear all after paying gst and also telling that if you want to buy then buy otherwise inwill put on hold and cancel
The money will take 6 to 7 months and wait till that
And now recently telling wait for 7 days i am also worry about your concern and all felling gulity
Is this a right way to costumer provide services like this ?
Please do needfull one
Name : Jay kishan telling and sending all the proof of the Indian army and
No: ‪+91 93364 65744‬/
Pushing me for giving money and telling to pay more and increase limit of account and all
Please refund my full amount to account