My current salary is around 150$ in Nepal. (I am underpaid, my colleagues with same experience are making around 250$). After few months, I will be experienced for 1.5 years. There is a big company in Nepal and I heard they pay 1.5 YOE 600$ per month.

I talked with my colleague and he told me that you've just 150$ now, and if you ask for 600$ you won't get it, which I agree.

I've already contacted my manager here in this company and he has clarified that the ceiling of appraisal is 250$ this year from 150$.

If this contunues, I will forever be left years behind my colleagues. What to do?