The same career, two very different retirement benefits
A 33-year career (age 25 to 58) on a ₹30,000 starting basic salary with 5% annual raises builds a real EPF corpus of ₹2,29,27,834.84, including ₹1,65,05,127.04 in compound interest alone. The same 33 years of service under EPS produces a monthly pension of just ₹7,071.43 — computed from a fixed formula, not from any accumulated corpus.
Why a much higher salary doesn't raise the EPS pension at all
Running the EPS formula with an average salary of ₹30,000 instead of the capped ₹15,000 still gives exactly ₹7,071.43 — identical to using ₹15,000, since the formula always caps pensionable salary at ₹15,000 regardless of what was actually earned or contributed. EPF, by contrast, grows directly from the real rupee contributions made and the real interest credited on them.
Defined contribution vs. defined benefit
EPF is a defined-contribution scheme: the final corpus is whatever the actual contributions plus actual compound interest add up to, which is why it can grow to several times the money actually put in over a long career. EPS is a defined-benefit scheme: the pension is fixed by a formula agreed in advance, completely decoupled from how much money was really contributed or how well any underlying fund performed.
Why both exist side by side from the same 12% employer contribution
The employer's 12% contribution splits between the two: up to 8.33% (capped at ₹1,250/month) funds EPS, and the remainder joins the employee's own contribution in the interest-earning EPF corpus. One paycheck, two structurally different retirement benefits — one that scales with career earnings, and one that doesn't.