It really depends on your company and manager. In my case, even I was severely underpaid and my manager recognised this (casually told him one day, without even asking for a hike), and talked to senior management to consider a hike, and I was given 26%, without even asking for it. However, not everyone can be lucky like this, so I would say that if your work has really made an impact, be upfront snd intimate your manager. If this doesn’t work, just look for another job, get the offer letter and resign. If your management felt that you are a necessary resource, they will definitely try to retain you. I recently resigned (because of bad culture), but I was again offered a hike (just 2 months ago I got 26%), however I refused as hike was not the motivation for me.