Hii Sunil!
Sorry, but you haven't mentioned the question properly. Your question seems confusing as to you want to know the scholarship for Assam board of education in a particular class or a common scholarship test. You haven't mentioned the category you belong to even. Let me tell you, the Assam Scholarship Applications are now out. You can fill it before 29 February, 2020. The forms are different for ST/SC/ OBC etc., So, it would be better if you restructure your question and ask again including the the necessary details.
Hope this helps.
Good luck!