Well chirayu, there is this clan called
"overclockers." These overenthusiastic dudes are gifted with loads of adrenalin and love to spend their free time increasing the speeds of their processors, the RAM, and in turn their overall rig (read computer).
For the processor, they will increase the clock multiplier and the FSB, or both. Then in order to sustain those high speeds, they have to provide more voltages. This will result in
heat - more heat than usual.
So they will try to
cool their computers. First they will uses exotic copper heatsinks that appear to occupy all of their cabinets! Then they will install huge fans that produce small storms and a hell lot of noise
All this while, they will keep upping the speed of the processor and keep cooling it. Now either they have deep pockets (heck all of them do), or are unable to tolerate the sound produced by the 7 fans they just installed to keep the computer cool.
Now they turn to water cooling --
a system by which water is used to achieve cooling. There is a water block that sits on top of the processor, water runs via tubes through this water block. The heat from the processor is transferred to the waterblock and from the water block the water that is circulating inside the water block. The heat is then removed from the warmed water via a radiator. The water moves around the whole system of radiator, tubes, and waterblock by means of a water pump. Of course, all the water flows inside pipes. Leaks can be disasterous. Some coolants are also added to the water to further enhance the cooling.
Yes, it is avaible in India. In fact a few months back, Chip carried an article on it. Sorry, don't know the contact where you can buy it though.
DH.