Salaries in Pakistan

I run a startup in Silicon Valley - recently hired fresh graduates (bachelor's) for 275,000 PKR per month (machine learning and AI)

We have had a lot of push back from them. Is this normal that they are asking for a hike?

I have one source: https://www.timechamp.io/blogs/average-salary-in-pakistan-and-outsourcing-trends/#:~:text=What%20is%20The%20Average%20Salary,1.68%20USD%20in%20February%202024.

Seems like we are paying quite well. Don't want to lose them, good kids but it seems like they aren't happy at all.

Edit: Data Scientist roles