With a diploma in Civil Engineering and a percentage of 73, you have a good chance of getting into government engineering colleges in India. However, the specific college you can join will depend on several factors, including:

• State-level entrance exams: Most government engineering colleges in India require candidates to appear for state-level entrance exams like JEE Main, GATE, or state-specific exams. Your performance in these exams will be crucial.
• Counseling and seat allotment: After appearing for the entrance exams, you will need to participate in the counseling process. The college you get will depend on your rank in the exam and the availability of seats.
• Reservation policies: Government engineering colleges often have reservation policies for candidates from specific categories, such as SC, ST, OBC, and EWS. If you belong to a reserved category, you might have an advantage.

Here are some government engineering colleges that you could potentially join based on your diploma percentage:

• Regional Engineering Colleges (RECs): These are government-funded engineering colleges located in different regions of India. They offer a variety of engineering programs and have a good reputation.
• National Institutes of Technology (NITs): NITs are premier engineering institutions in India. They offer high-quality education and excellent placement opportunities.
• State-level engineering colleges: Many states have their own government engineering colleges, which can be a good option if you prefer to study closer to home.

It's important to research the specific admission requirements and eligibility criteria for the colleges you're interested in. You can find this information on the official websites of the colleges or by contacting their admissions offices. By preparing well for the entrance exams and exploring your options, you can increase your chances of getting into a government engineering college of your choice.