He listed a mobile on olx. I showed interest in the phone. He asked me to call. He said he received the phone in dowry and wants to sell urgent. Will send the the phone by courier at the earliest. I can go and get it checked in service center about the phone. Then, he keeps giving every detail every minute where he is going, which courier company he is using, when courier get packed, where it is packed, every small detail on WhatsApp Then he asks for advance amount of 2000 rupees, where I came to know his intention.