Is there any additional benefit like to get good job if I've pursued my degree in computer engineering and take admission in IT for MBA?

As a whole, you will not get much advantage. Ideally, after computer engineering, if you specialize in other domains in MBA, it will widen your options in the job market.

Yes there will be advantage in interview and justification for doing MBA. But in general MBA in IT is not a great value addition. You need to do MBA in other verticals with may be IT as minor. Also, you will be paid extra if you have relevant experience, so its better to do a job in IT first, if you