Long term capital gains ( LTCG)

Anand (Avp) (67 Points)

18 March 2020  
We sold a house/flat in Aug 2018. Based on assessments, opened a long term capital gain account in Feb 2019 with SBI.
Question is whether can we invest the long term capital gain in NHAI bonds now or necessarily we have to go for property purchase to save
LTCG.