54f and 54EC tohether

Sunil (manager) (149 Points)

29 October 2021  
Say I sold a property for 1cr with indexed cost of acq of 10 L.

I invested 50L in REC bonds.
How much more should I invest in an apt to claim 54F fully and avoid capital gain tax on 90 L.

Without 54ec I should invest entire 1cr. How are calculations done in this case