Who can register for NPS ? Between 18-70 years can join. Easy and multiple registration options (Aadhaar, Digilocker etc.) Open Tier I (Pension A/c) and Tier II (Add-on investment A/c). Central Govt./ State Govt. (including autonomous bodies) employees covered in NPS . NPS is available to all eligible Indian citizens who meet the stipulated conditions. There are two ways to open the NPS account – online and offline. Register for NPS online with Protean eNPS. Start your retirement planning with ease and enjoy tax benefits every year. NPS Login: How to open an NPS account online? The National Pension Scheme ( NPS ) was introduced by the Government of India in the financial interest of senior citizens in the country.