Hello @Immadi_Bhimeswara_ra
Yes, you can invest ₹50 lakh in 54EC bonds in the financial year of sale and the remaining ₹20 lakh in the next financial year, as long as the total investment is made within six months from the date of sale.
However, there is a maximum investment limit of ₹50 lakh under Section 54EC. This means that while you can split the investment across two financial years, the total exemption is capped at ₹50 lakh, and the remaining will be taxable.