To be eligible for the D Pharma degree at Government Polytechnic, Tehri, Tehri, candidates must have completed their 10+2 examination with Physics, Chemistry, and Biology/Mathematics as compulsory subjects. They should have obtained a minimum aggregate of 50% marks in the qualifying examination. Additionally, candidates may need to pass an entrance examination conducted by the institute or the state government. It is also important for candidates to meet any other specific eligibility criteria set by the institute or the pharmacy council. Applicants are advised to check the official website of Government Polytechnic, Tehri, Tehri for detailed eligibility requirements before applying.