I personally recommend Matrix infosys for all your laptop and computer service requirement, they are really very skilled person and are very transparent in sservice
Not seen such a nice and fair service center in kolkata, they solved my laptop problem right in front of my eyes within a matter of time and also charged minimally. hats off .. Matrix infosys.
The most transparent and crystal clear service people, i have never seen service/repair in such a transparent way, must to try if u wish to get your laptop or computer serviced.