Capital gains reinvestment under Section 54EA permits investment in specified company shares subject to a fixed retention period. Specification under Section 54EA designates shares to be issued by M/s. Infrastructure Development Finance Company Limited as eligible for reinvestment of long term capital gains. The notification authorises issuance within one year up to the stated ceiling, conditions eligibility on investment of proceeds arising under the head 'Capital gains' from transfer of long term capital assets, and provides that if the allotted shares are transferred within a three year retention period the initial investment shall be chargeable to tax as capital gains under sub section (2).