A discrete graphic card can be upgraded by completely opening the laptop (Screen & all).
But this is pointless. Getting Mobile version of graphic card is difficult enough in US/UK let alone India.
The performance improvement will not be as good as a new laptop you can buy from the cards money and sale of current laptop.
EDIT : I googled a bit and 9300M is available for $200 in US.
seems more and more people are interested in upgrading laptop gfx card.
certainly we would like to know the make of your lappy. This would be interesting to watch !!!!!!
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