Assam can be an okay place to pursue Aeronautical Engineering, but it won't be the best choice as opposed to other states with stronger aerospace centers. Although Assam has some engineering colleges that teach aeronautical or related courses, the aerospace industry in the state is less developed compared to Bangalore, Chennai, or Pune. These places have robust aviation industries, good institutions, and improved industry exposure. If you are in pursuit of high-end aeronautical education with the latest research centers, internships, and job placements in prime aerospace organizations, those states that have a larger aviation industry could be more ideal.
Still, Assam has its benefits such as cheap education, a serene environment, and developing infrastructure. Even if you want to study in the Northeast and then seek opportunities elsewhere, it is still possible to find a good footing in aeronautical engineering. It is necessary to verify the accreditation, faculty qualifications, and industry linkages of any institution in Assam before making a choice.