To be eligible for a B.Tech degree at Green Fort Engineering College in Hyderabad, candidates must have completed their 10+2 examination with a minimum aggregate of 50% in Physics, Chemistry, and Mathematics. Additionally, they must have a valid score in entrance exams such as JEE Main or TS EAMCET. Candidates from reserved categories may have relaxation in the minimum percentage requirement as per government norms. It is also important for candidates to meet any other specific eligibility criteria set by the college or university.