problem to access memory card in pc

[dushi]

i have gionee g3 smart phn, when i connect it to pc via usb cable than my phn not show the option to select mass storage so i am unable to see the card in pc, but the same card is showing in phn

 

[popatim]

Please read section "7.3 Connecting to a computer via USB" of your users manual which is on page 13.
It tells you how to put your phone into USB mode.