The minimum age for becoming a Governor of a state in India is 35 years. This means that a person must be at least 35 years old to be eligible for the position of Governor. Option 1, which states 30 years, is incorrect as it does not meet the minimum age requirement. Option 2, which states 25 years, is also incorrect as it falls below the minimum age requirement. Option 4, which states 45 years, is incorrect as it exceeds the minimum age requirement. Therefore, the correct answer is option 3, which states 35 years. It is important to note that the age requirement may vary for different positions and offices in India, so it is always necessary to check the specific requirements for a particular role.