How to verify lenvo mobile phone?

I bought a Lenovo mobile phone online, but the equipment looks like a second hand. So, how do I verify if the product is genuine? Can we check the IMEI/serial number from Lenovo site or call Lenovo customer support to check that?

Yes you have a better option to ask from the lenovo care centers. But if you want to check by yourself so just check on the screw after removing the back cover whether there's any seal of lenovo on any of screw. Or you can check just for dust and all.