The two NPS deductions, completely different: 80CCD(1B) = YOUR OWN contribution to NPS, extra ₹50K beyond 80C, old regime only. Sec 124 (old Sec 80CCD(2)) = EMPLOYER contribution to your NPS account, deducted from your taxable salary, both regimes. Most people confuse the two. You can have both if you are salaried. Sec 124 (old Sec 80CCD(2)), how to activate it: Step 1: Open NPS Tier 1 account (eNPS portal or employer HR). Step 2: Get PRAN number. Step 3: Email HR: "Please activate NPS employer contribution at 14% of my basic salary under Section 80CCD(2) and restructure my CTC accordingly." Step 4: HR restructures payslip, NPS employer line appears. Step 5: Form 130 (old Form 16) Part B shows Sec 124 (old Sec 80CCD(2)) deduction. Net effect: same CTC total, but ₹X thousand now goes to NPS instead of special allowance (which was fully taxable). Real numbers, basic salary ₹80,000/month: 14% NPS employer = ₹11,200/month = ₹1,34,400/year.