What course should I choose between BCA and B.Tech(CSE)?

Hi Amab, You can go for any one these (BCA or Btech). Both will give you brief knowledge of programming language. But what I feel is you should go for B.tech as here you will get deep and core understanding of languages. Later on, you can select language as per your interest.

Hi Arnab, Where are you from? I will suggest go for BCA (specialisation) instead of regular BTech degree. Also, join some Online Courses from websites like Coursera, Udemy, NPTEL to enhance your profile. B.Tech provides you with limited placement guarantee only if is this from reputed Institute.