You can save capital gains tax arising out sale of capital assets e.g. property etc by investing in capital gains bonds u/s 54EC. Long-term capital gain is the gain that is derived out of a sale of an asset (Land or Building) that has been held for more than 2 years. You can invest the gain in certain specified bonds to claim tax exemption within 6 months of the date of sale of the asset. 54EC bonds, or capital gains bonds, are one of the best way to save long-term capital gain tax arising out of sale a capital asset.The maximum limit for investing in 54EC bonds is Rs. 50,00,000. The eligible bonds under Section 54EC are REC (Rural Electrification Corporation Ltd), PFC (Power Finance Corporation Ltd) , NHAI (National Highways Authority of India) and IRFC (Indian Railways Finance Corporation Limited). The tenure of these Bonds are usually 5 years.