Yes after completing your Diploma course you can choose either for yuor higher education or either you can get a job in respect to your qualification i.e. Diploma degree. But it will be better that after doing your Diploma degree you can go for B.Tec degree because now a days the value of B.Tech degree is more than the Diploma degree. So it will be better for you that you should go for B. Tech degree after completing your diploma degree.