Cyber security internships and entry level job salaries ?

I have a few friends who work as cybersecurity interns and they're earning only around 15,000 LKR per month. I also checked salary data on Payscale and Glassdoor, and it looks like many companies in Sri Lanka offer around the same amount for cybersecurity internships.

Is this considered the normal salary for cybersecurity interns in Sri Lanka, or are there companies that pay significantly more?