It really depends upon which course you want to study and what you do in your life . Either you want to go in research field or management field , it depends upon you. 

Integrated  Btech IT course with MTECH will teach and give you complete knowledge about technology  and  you will get core and it companies for placements in which you will learn how the technology is developed and give you practical idea about it . You will get a position for example as a researcher , software developer and mainly your work will be in technology field like research and development.

Integrated Btech IT course with MBA will teach you not only about technology but also how the technology is managed. How good is your software or technology is in the market and how can it grow  from time to time and even the analysis is done like how can the technology will be the winner in the market . You may get a job as a software manager ,which can be called as a team leader which tells its devlopers , how to develop and design the technology etc : 

Placements in both the courses are good , you may know that IIT gives the best placements , so no need to worry about placements , you can get good placements even the highest package if you have proper knowledge and skills about the course you are doing . 

Hope it will help you.