U can get ur imei no. Back...even I have faced the same Problem..just go into the engineering mode then in the connectivity column goto cds information and then to radio information and then phone 1--- type AT+EGMR=1,7,"" within the inverted comma put ur first imei no..and hit (send at command). And similarly in phone 2 type at+egmr=1,10"" and put your second imei no.and hit send at command ...then just reboot...it works...
U can find your imei no a the back where u put ur battery. With bar code the first is for phone 1 and below that for phone 2
Sent from my Micromax A110 (Canvas 2) using xda app-developers app