M.Tech

If you are pursuing from a top engineering college than integrated B.Tech and M.Tech is a good option. You have a benefit of completing Masters in 5 years along with Bachelors. Generally, its suggested to complete Masters exclusively in 2-years with proper research work and projects.

Kindly clear the college you are seeking for.

Its vary and depends upon the branches also. Any GATE score more than 400 have good chance to get admission.

Well, it's having the same value for both of the courses. But these days due to growing IT industries, it's better to choose for B.Tech+M.Tech. It's because nowadays companies serve better package in the technical field rather than in software departments. I hope this was helpful to you.

B.Tech from IIT is better compared to M.Tech in IIT because in M.Tech, you may undergo specialisation. So, getting a job is comparatively less compared to B.Tech.