I have lost my Panasonic Eluga A3 mobile - Can i do Enable lock and Erase then can i access my phone back?
Since the phone is off you cant retrieve anything from it, the location that is showing to you is the latest location the phone could retrieve before it was switched off.

Trying to erase all the data will take place after the phone is turned on again and got any 4g - wifi signal on it.


  "Then will i be able to again login to my Andriod device manager and
  track this mobile"


Answer - No, because of the above.

Hope it helps