Explanation:

Let’s break these down:

- Option 1: "The proposed body is expected to take up both inter-State and intra-State projects."

This is passive, neutral, and correct. It simply states what is expected in general terms.

- Option 2: "It is expected by the proposed body to take up both inter-State and intra-State projects."

This one is off. It sounds like the body expects *itself* to take up projects, which is awkward and unclear.

- Option 3: "It was expected by the proposed body to take up both inter-State and intra-State projects."

Same confusion as option 2, plus it uses past tense (“was expected”), which may not fit every context.

- Option 4: "We expect the proposed body to take up both inter-State and intra-State projects."

Here’s the thing: this is straightforward and puts responsibility on the people or group doing the expecting. It’s clear.

So, the best options are 1 and 4, depending on what you want to say. Option 4 is clear, active, and natural.

"We expect the proposed body to take up both inter-State and intra-State projects."