Date of investment of 54 EC Capital gains bonds

To avail capital gains exemption, investment in 54 EC Capital gain bonds are to be made within 6 months. The six month period ends on 17th April 2024. Though the investment can be made online before 17th April, allotment of bonds will be made only on the last day of the month, viz 30th April.
In such a case, will the nvestment qualify for capital gains exemption as allotment date is beyond the due date for investment?