Karbonn Mobiles — Mobile phone is missing

Address:

Mumbai City, Maharashtra, 410210

I bought a karboon titanium moghul anroid phone from mumbai which got defected after just 2 days! so i went to karbon service center for repairing but they forwarded my phone to company and told me that your phone will be back in 25 days!!
but todays its been around 64 days yet my phone is missing! every time i go to that service center..they ask me to contact directly to company and when i call in company they are not responding correctly!!
please submit my complaint and take a neccesry step to get my phone back!
my number is [protected]
Yours truely
Rajveer