I appeared my 12 class exams (nonmed) from NIOS board so can i get the admission in good college and i am expecting my marks above 70% .

Dear Ajat NIOS is well recognized organisation for open schooling, If you get 70% or above it is just equivalent to any other board of India,You can apply for any good college you want,But admission will be as per guidelines of that college and their cutoff marks

Yes you can get admission in any good college. If you are so confident about scoring 70% in 12th then you can apply for admission in universities like LPU, Amity etc, where on the basis of your 12th percentage you will be able to get direct admission in a course of your choice as well as scholarship