Dear candidate although, Computer Science Engineering and Electronics and Communication Engineering are two different branches one dealing with Computer design, programming language etc. ECE deals with Electrical device design, development, circuits preparation etc. The subjects involved in CSE are

Introduction to Digital Electronics

Value and Ethics

Operating Systems Concepts

Numerical Analysis

Python Programming

Introduction to Web Technology etc.

In case of ECE it covers---

1. Applied Physics

2. Electrical Technology

3. Electric Devices

4. Manufacturing process.etc

Hope it helps!!!