Resetting Macbook Air multiple times.

Nope. You may have been using it more than would otherwise be considered normal, but that's what Macs are for: to be used.

Batteries are really the only components that wear out with use. There isn't anything anyone can do about that, and they still should last for years.

Storage is write / erase cycle limited, but to completely wear out a Mac's storage is literally unheard of.

Divyanshu-TheOne wrote:

So it means that other than battery, none of my hardware components like processor, ram, storage will wear out by multiple reset?

No. Not even the battery for that matter.

Of course if you are doing particularly energy-intensive tasks you may want to connect your Mac's power adapter while you are doing them, but that is more for the sake of convenience than anything else. The Mac will cycle its battery when it needs to anyway, even when it is connected to power.

Has my multiple resets of my macbook caused any trouble to it.

No.

Is my battery OK cuz it is still showing 100% capacity and only 5-6 cycles of charge?

Yes. It's perfectly ok.

Enjoy your Mac.