Hi Arun,

This overheating can happen for several reasons like your computer’s case may be full of dust, a fan may have failed, or something may be blocking your computer’s vents.

You can use the below mentioned fixes one by one to solve the overheating issue in your laptop:

Fix 1. Kill Your Processes
The heat generated by the CPU is generally the main heat source within a laptop, and non-vital background processes only serve to make this worse.
You can manually configure what starts up in Windows using the Microsoft System Configuration Utility.
Hit Start, find Run (you may need to search for it, depending on your particular version of Windows) and type in msconfig and click OK.


Navigate to the Startup tab and simply toggle the items you’d like to run when your computer first boots. Many update managers and system tray processes (like Quicktime, Java Update Scheduler, etc) are completely useless and simply reside there wasting your resources.

Fix 2. Clean your Laptop/PC 
Your laptop’s number one enemy is dust, so removing this dust not only cleans and safeguards your machine but also increases airflow which in turn will boost your fan’s efficiency. I wouldn’t recommend doing this if you’re not 100% sure what your doing.

Fix 3. Buy a Laptop Cooler
Due to their nature, size and increasing amounts of power; laptops seem to just get hotter and hotter. As a rule, old laptops would generally go for a year without getting too hot. Now they’re so small and powerful that a laptop cooler is pretty much a necessity from day one.

Fix 4. Check for dust in fan
If the issue is with dust in the fan, I would recommend you to use the app HWMonitor to check the temperatures on your PC. Link for that app is :
http://www.cpuid.com...

As an immediate solution, you can try cleaning the laptop's vents using a can of compressed air and using the laptop in a relatively cool room.

I hope this helps in getting your laptop safe from overheating.

Regards,
Lokesh