In CSE you have a lot of subjects and variables of topics. So the primary reason which is considered is that if you want to know more about a specific part of CSE then specialization is great.

For example, you have interest in CSE but you really like the portion of Artificial Intelligence then you can go for the specialization in AI.

But in general most student don't exactly know how is the essence of the subject in real life. For example we all know about robotics but in robotics we have various parameters which we have to learn and not only building it. Thus I always suggest that if you are sure about a field of specialization is what you want to do then go for BTECH CSE specialization else its better for you to go for CSE.

Taking the wrong specialization can be very frustrating for any student. So you should either be sure or don't take it else. You can know about any specialization by searching on internet or by seeing the curriculum of a university you want to take admission in. If you think that you will enjoy studying it then go for it else you go for CSE.

Remember CSE will give you a broad perspective and you have enough job opportunity in it. So don't go for specializations being not so sure.

To know more about CSE visit the link below:

https://www.careers360.com/courses/computer-science-engineering-course

To know more about AI visit the link below:

https://www.careers360.com/courses/artificial-intelligence-course

I hope this answer helps. All the very best for your future endeavors!