To ensure the successful implementation of the National Education Policy 2020 in high schools in North-East India, it is important to monitor and evaluate progress regularly. This will help identify areas where progress has been made, as well as areas that require improvement.

Here are some ways in which schools can monitor and evaluate their progress:

1. Set clear goals and targets: Schools should establish clear goals and targets that align with the objectives of the NEP 2020. These goals should be specific, measurable, achievable, relevant, and time-bound (SMART).
2. Develop monitoring and evaluation mechanisms: Schools should develop a system to monitor and evaluate progress towards achieving their goals. This could include regular assessments of student learning, teacher feedback, classroom observations, and other relevant data.
3. Analyse data and make necessary adjustments: Schools should analyse the data collected and make necessary adjustments to improve teaching and learning. For instance, if students are not performing well in a particular subject, the school may need to revisit the curriculum, teaching methodologies or provide additional support to the students.
4. Involve stakeholders: The involvement of stakeholders such as parents, community members, and education experts is crucial in monitoring and evaluating progress. Schools can organise regular meetings with stakeholders to get their feedback and suggestions.
5. Celebrate successes: Celebrating successes can be an effective way to motivate teachers and students. Schools can recognize and reward teachers and students who achieve their goals or make significant progress towards them.
6. Continuously improve: Finally, schools should continuously strive to improve their monitoring and evaluation systems. This will help to identify areas for improvement, and to develop strategies to overcome any challenges that arise during the implementation process.

In conclusion, monitoring and evaluating progress is a critical aspect of implementing the NEP 2020 in high schools in North-East India. By setting clear goals, developing monitoring and evaluation mechanisms, analysing data, involving stakeholders, celebrating successes, and continuously improving, schools can ensure that they are making progress towards achieving the objectives of the NEP 2020.