[Q] How to find the mobile phone is Original or Clone or Refurbished???? topic

Hi to all,

This is Prasad.
first i don't know much English so please don't mind about my language.
My question is I am mobile Phones reseller (Small Scale business), few days back I got few quotations for mobile phones (like Apple, Sony, HTC, Samsung, LG, Nokia and Blackberry) and I seen few models also. but I have a doubt either that mobile phones original or Clone or Refurbished. I don't have any technical skills to check that mobile phones. so please tell me how to Check that mobile.
i am getting prices like Sony Xperia Z Rs.11,000/- Apple iPhone 5 64gb Rs.19000/- HTC One Gold colour Rs. 12000/- Samsung Note 2 Rs. 13000/- Samsung Note 3 Rs. 22000/- LG G2 Rs 12000/- and few more models. I was shocked about that prices. when I was seen that mobile phones I didn't find any thing, it's looks like same (Original one). and How to check IMEI Number?

Please helps me out ..

Thanks & Regards.
Prasad G Chowdary:confused: