It depends what you mean.
Finance Independence and Retirement Early (FI/RE) are two overlapping ideas. If you plan to retire early and spend the same amount of money every year (adjusted for inflation), then you need to save twenty-times your yearly spending to satisfy the 4% Safe Withdrawal rule of thumb. Carefully notice I say "yearly spending" and not income.
I'm unaware how it is in Pakistan, but in America, people who retire in their sixties tend to reduce their spending by 30%. This is for a host of reasons like not eating out as much, not driving to work, paid off mortgages, and their children being adults now. In this type of profile, a person needs to save 17.5x yearly spending.
This numbers presume a person will only use their built assets as an income source. Any programs like a government pension acting as a safety net. If you factor those in, the estimates above become smaller.