#gunjan.singh548 I have a similar system
Same DABBA iball, 2gb ddr2, q8200 stock and 8600gt
mine has better processor while yours has a better GFX
I too faced problems of high temps, though not severe as yours as I could play Skyrim at around 22fps while having high temps that too 99C with 100% CPU load. Even I amazed that how could the processor go on at such high temps. The temps were cyclying through the cores between 95 and 99C. I only have a single working fan 80 mm one that came with the cabby at the back.
Then I got a tube of Arctic Mx2 from Prime @450 and my temps are in high 60s while playing Skyrim with 30 fps at medium settings with CPU load of around 60%.
I advise you to:
CLEAN your cabby of all the DUST.
Properly apply the thermal paste.
Scan your system with a good AV BEST will be to just FORMAT it. I'd recommend you to format since a full system scan can take anywhere like 2~3 hours depending upon the capacity you have, while if format it will hardly take 45 min including reinstalling all the necessary apps like VLC, Office, etc
I also see that you have your cabinet tucked in too deep, give it some open breathing space.