Hi Awaiz

B.Tech in a professional degree of 4 years and BCA is a degree of 3 years. In B.Tech (CS), more of a technical knowledge is imparted, whereas, it is not the same in BCA. At job level, the important thing to note is that B.Tech is equivalent to MCA, not BCA. Also, if you want to go to abroad, then B.Tech will be preferred over BCA.

Hope this helps!

computer science is four years course and BCA is a three years course.

computer science engineering outcomes knowledge in computer science,software,hardware systems,design and develop computer algorithms,programs,software,embedded and networking systems.

BCA-Bachelors in computer science, BCA is a three year undergraduate degree course generally for students who wish to delve into the world of Computer languages.