Iit Roorkee — vikas indian army fraud

Seeing the add on olx for buying a scooty i contacted the person called himself - vikas patel from indian army.
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He told me to send 5000 rs via online payment, and rest on delivery of scooty via army post.
I insisted to see the product before buying for which he said it is for urgent sale and said tht you dont have trust on indian army.