QUERY RELATED TO U/S 54F CAPITAL GAIN

I have sold a property on 11th Feb. 2020 and deposited the amount of capital gain arising from the sale of property in Capital gain account scheme (CGAS) on 14th Sep. 2020 which was before filing of the income tax return. Now 2 years have passed from the date of sale but still I have not purchased the new property. Please advise whether now I can claim the exemption u/s 54 F by purchasing a new property and construct the same before the end of 3rd year from the initial sale of property?