hi,
from this year onwards there is negative marking in ugc net for objective questions....
as far as book is concerned , u can buy trueman publications book meant especially for ugc net. there will be two books from this publication house. one is general book for all streams which includes reasoning, general knowledge, number series, teching aptitude etc alongwith sample question papers and another is your subject book i.e managemt book.. which will include the sylabus for ur objective and subjective paper..
namrata singh