Naganathapura does not hold the SAI heat-sink tools. Those tools are in Ganesh Complex, Electronic City, opposite Infosys. You carry the warm laptop to them.
Wrists that get hot
Heat through the palm rest, a shutdown with no warning, or a fan that keeps roaring is followed into the fan and the heat sink. They report the cause before any part is ordered. A cracked screen, a weak battery, a dead keyboard, a slow drive, and malware are written only if the heat was not the cause.
The heat has a reported cause
You are not left with a shrug and a new screen. The quote states the cause, and paid work waits.
Dial 099724 47766 and mention heat under the wrists. The services page, the Naganathapura repair page, and the main PC page are those tools.