B.Sc. in computer science and B.Tech. in computer science are more and less similar as far as the basic syllabus is considered but in B.Tech. more coverage is given from engineering aspects of this stream. Now depending upon your interest you can go for any of them and if you score good in B.Sc. then you will have opportunity to do some advanced courses in this area and then try for a job or start on your own. There are many courses like Animation, Web Designing, System Management, Data Base Applications, Financial Softwares, Digital Marketing, Networking etc which can be undertaken to enhance the knowledge in this field and then go for the related jobs. Alternatively, after B.Sc. one can head for the integrated PhD course in the select institutions or go for M.Sc. or M.Tech. in this line and qualify NET and then apply for lecturer post in the universities.
If you prefer B.Tech. mode then you will have to score very good in order to get placement through campus recruitment and if you do not get success in that then you might have to apply in Govt and PSU jobs where the B.Tech. in computer science stream students are taken after a written test. For meritorious candidates there are scopes in the IT industry.
In any case whether you do B.Sc. or B.Tech., being a graduate, you are eligible to appear in the Central or State Administrative Service, Railway Services, Defence Services, Teaching areas especially private coaching centres, Banking Services etc. If computer is your core area and you want to work in it only then going for diploma in advanced computer skills like effective coding, SAP, software platform development for new businesses, financial and commercial software development, softwares for R & D in science and technology and other similar ones makes sense before applying for a relevant job.
In my opinion whatever mode you select whether B.Sc. or B.Tech., you must concentrate and focus for achieving the top most score and then top up your skills and knowledge with additional certificate or diploma courses.
Knowledge is power.