Foreign investment limits increased for FIIs in government securities and corporate debt, easing maturity and lock in requirements. The circular raises FII investment ceilings in Government securities and corporate debt, increases the sub limit available to FIIs and long term investors for dated government securities while removing the prior residual maturity condition (subject to exclusion of short term Treasury Bills), expands overall corporate debt limits with sectoral sub limits and exclusions for CDs/CPs, preserves a separate QFI corporate debt ceiling above the revised limit, and relaxes lock in and residual/original maturity conditions for infrastructure and QFI investments.