I can't actually risk opening the entire board as I don't want my laptop to get malfunctioned in this huge lockdown. (Lockdown is extended till may 17th so I won't find any person to repair in case any part gets destroyed while opening)
My whole & sole earning depends on my laptop.
I see that you don't have any other extra laptop or desktop for doing so. That's ok. Just be patient and wait until the lockdown lifts so that you can consult to a technician.My whole & sole earning depends on my laptop.
It didn't happened to me but there are ants on my table and keyboard and I saw the same problem with other people that I've met online. Ants on modems, laptops, desktops and other devices that these ants can stay.
I guess you eat when you use your laptop and when there are ants on my table, the same procedure as @peter0425 did, I spray alcohol on my table and luckily, they were gone.
If worse case scenario happens and your laptop suddenly shut downs, it's possible that those ants affected the board.
Yes, that's because I eat while working on laptop. I read it on the internet that if a ant dies in between the connectors, circuits than it might cause a malfunction. Even though this is a rare case but yet it makes me worry as my laptop has most important backups/etc.I guess you eat when you use your laptop and when there are ants on my table, the same procedure as @peter0425 did, I spray alcohol on my table and luckily, they were gone.
If worse case scenario happens and your laptop suddenly shut downs, it's possible that those ants affected the board.
And if it worries, then create a backup first so that you are prepared if something bad happens. You can put a cloth first before putting the food that you are about to it so that stains from that food or drink will go to the cloth which you can wash later and it won't attract any more ants.
Don't you want to open the board and see the affected areas so you can focus them removed with the use of paintbrush?
My whole & sole earning depends on my laptop.
Why are the ants loving my laptop so much?? 
I think this is because the heat that laptops produce.