Hello Pawan
You need to turn off ssl verification
I'm not sure how this is done in curl but with python requests library, you add verify=False in your post request.
payload='j_username=****&j_password=******'
headers = {
'Content-Type': 'application/x-www-form-urlencoded',
}
response = requests.post(url=url, headers=headers, data=payload, verify=False)
You need to research how to do this with curl