Naganathapura does not keep SAI tools. The tools are in Ganesh Complex, Electronic City, opposite Infosys. You carry the laptop to the tools.
A fan that will not settle
Noise, a sudden shutdown, or heat under the wrists is followed into the fan and the heat sink. They report what they saw before a part is ordered. If the real fault is a cracked panel, a swollen pack, a dead key row, a crawling disk, or malware, that is the line they write instead.
Heat gets a cause
You leave knowing why it ran hot, or you leave with the quote still unsigned. Paid work does not start in the gap.
Phone 099724 47766 and describe the noise. The services page, the Naganathapura repair page, and the main service page point here.