Dear aspirant , 

The benefits for doing integrated mtech are : 

1) You end up doing master's with one extra year to spare , as you may know master's is of 2 years , so it will save that 1 year for you .

2)In your final year , you get a stipend of about Rs.10,000 per month , in order to apply for stipend you have to clear GATE exam though.

3)The major advantage will be during your placements , as the company will see you as an individual who has not only learned the basics but also the advanced i.e the core subjects of the course. You will be open to most of the core companies. 

4) Your salary package will be a little higher than the individuals who had applied for only bachelor's program.

NOTE : It will be only beneficiary for you if you want to make your career in research and development . If you have the desire and passion in this field , then only you should apply otherwise it makes no sense for you to put your precious  time and money for this course.