Hi Sayan,
If I be honest, both are excellent streams and have tremendous scope for future. Both of the streams will allow you to pursue research, ECE a little bit more than CSE while CSE will allow you to grow faster in the job. Both allow same number of job oppurtunities as well. Most IT companies allow students from both of these streams as students from both are exposed to coding and electronics.
I suggest you to go through the curriculum of both and choose which attracts you the most. You will get opportunities if you learn everything by heart.
Hope this helps,
Good luck!
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