yes... wine does not simulate most of the games, leave alone modern games....
But CrossOver (Paid App) seems a lot better at running windows programs.... You can try the demo version to see if it works for the game you want to play!
I think for the cost of CrossOver he's better of paying Rs. 3500 incl. of all taxes, one time payment, for a windows xp home edition OEM. He must be using some windows anyway now
My advice is:
1. Install one of the flavours of Linux advised above without deleting your windows.
2. Learn to use various productivity apps like open office and other programs and slowly switch. Have a look at this table of equivalents
3. Use Linux for browsing. That way you can install only what software you really need on windows. Throw out the antivirus, firewall and other stuff that slows down your windows. Just remember
not to access the internet through windows
This move will free up more resources for your games in windows