dear aspirant,

• NID DAT book by R.S. Aggarwal (aptitude section)
• NID Workbook
• Design drawing by Francis D.K.Ching
• NID (B.Des.) Entrance Books and Test Series,
• Basic Rendering from Robert W.Gill
• Guide for NID
• NID Mock Test Series
• Success Master- NID entrance Examination

are some of the books you could buy online, . The previous years’ papers/model test papers are considered as the best study material for NID DAT preparation.you can also get the sample papers careers 360.

hope it helped.