UPS vs NPS vs OPS: Last-drawn basic pay Rs 90,000, pensionable service 27 years; which scheme may help you get highest pension?

UPS vs NPS vs OPS: Monthly pension is a big necessity for crores of state and central government pensioners across India. They need to run their daily expenses post retirement. A regular pension provides them financial freedom, where they don't have to depend on others for their expenses. For such pensioners, 3 prevalent pension schemes in India are- Old Pension Scheme (OPS), National Pension System (NPS), and Unified Pension Scheme (UPS). OPS is the oldest, but it is in existence only in a few states. NPS was made mandatory for central government employees who joined on January 1, 2004, and after. UPS is the latest of them, which will be available for employees from April 1, 2025. Employees can also shift from NPS to UPS, as employees of Employees' Provident Fund Organisation (EPFO) did on February 26, 2025. Know how all 3 systems are different from each other and what the pension will be for a central government employee with Rs 90,000 as the last drawn salary and 27 years of pensionable service in all 3 systems. 
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