Definitely, there is a difference . And the main difference is the payscale.
B.Tech  graduates are paid less as compared to a M.Tech student. In every software company this rule is followed.
When it comes to software and electronic industry the education play minimal role in deciding the salary. Because mostly they ask M.Tech student and B.Tech students to sit for a common test and then follow a similar interview procedure, who ever performs better take the best package home.

On the other hand, when it comes to core engineering branches like Civil engineering, Mechanical engineering, Electrical engineering and other related branches industry and government jobs give a clear advantage to master degree holders and sometime give higher grades and salary scales.

Advantage of doing masters is during promotions. Many companies give master degree additional points and consider promotions early on. That will increase salary as well as responsibility, giving a great chance to show performance directly to higher authorities and rise to higher levels in a company.

Hello

At the B.E level students are likely to get basic execution level job at the M. E/ M-Tech level , students are generally appointed at the higher level and those job have more to do with planning ,research and development. Such job typically also come with the higher starting salary

I hope it will help you
Good luck..