To apply for a B.Tech in Computer Science and Engineering along with an Aircraft Maintenance Engineering course approved by the Directorate General of Civil Aviation (DGCA), you need to follow a few key steps. First, check eligibility criteria for both programs: For the B.Tech course, candidates must have completed 10+2 with Physics, Chemistry, and Mathematics. For AME, the requirement is a science background in school, though requirements may vary.
Once eligible, apply for entrance exams such as JEE Main or any university-specific exam for admission into B.Tech. In the case of AME, one has to apply to the DGCA-approved institutes that provide the program through either entrance exams or based on merit. Once you get admission in both courses, then manage your time and educational obligations. Because doing both together will be a bit challenging. Other than this, scholarship or financial aids are also available in most institutes.