Investing in Section 54EC Capital Gains Bonds

I’d be investing in Part 54EC capital good points bonds, from the proceedings of sale of a property.

There are 4 such bonds primarily based on my information.

I want to know the Execs and Cons of every of those 4 bonds

Ought to the funding be divided in every of the 4?

Rural Electrification Company Restricted or REC bonds

Nationwide Freeway Authority of India or NHAI bonds

Energy Finance Company Restricted or PFC bonds

Indian Railway Finance Company Restricted or IRFC bonds