curl 60 ssl certificate problem: unable to get local issuer certificate - docker desktop image build

Blogging after long time as things could get busy sometimes...

Well recently, I encountered an error for SSL certificate in one of our projects working with Docker desktop while building an Image.
"curl 60 ssl certificate problem: unable to get local issuer certificate"

I was wondering what could be the issue.
my first guess was that its something to do with my local machine's certificate as error says.
so I tried few options as I found from the stackoverflow:
1. install the ca-certificates with following command:
sudo apt-get install ca-certificates
sudo apt-get install reinstall ca-certificates
sudo update-ca-certificates -f

But apparently it didn't work, had to find some other way.
2. some places used the certificate from curl.se :
curl -k https://curl.se/ca/cacert.pem
download above certificte to the system and put it under /etc/ssl/certs/ca-certificates.crt
it still didn't work to get the composer working.

3. Final option was to check with the system administrators;
Ideally, this should have been first option..lolz. but I used this as last option.
According to them if you are in corp network you should use build option in docker.

docker build --build-arg http_proxy=YOUR_COMPANY_PROXY_URL:PORT
and it worked !!!

as it took few hops to different teams and stackoverflows thought to save some time for others !!
hope it will work for you too..