Hey Vishvas

BTech in Food Technology is more diverse than BTech in Dairy Technology, infact you will get to know about dairy technolofy in food technology too. However the scope of getting a job after dairy tech is more than the chance of getting a job after food tech (as food tech has more number of students and with dairy tech you will be specialized with the subject). After food tech you will need to specialize in some stream (most often) to get a good job but the job will pay you higher than the one you would get after dairy tech.

That being said it totally depends on you and your interest. All the best!