The selection prcoess of ITM IDM includes Design Aptitude Test & Situation Test and Personal Interview & Portfolio Presentation. For Design Aptitude Test, solving sample papers is essential. In case, you can solve NID DAT sample papers.

You can get DAT Sample papers here-

https://design.careers360.com/articles/best-books-and-study-material-for-nid-dat-2019-preparation

For Situation Test, you need to practice with some materials like Cardboard, themocols, papers, glaze, polymer clay, aluminium sheets or foils, foam sheets, straws, rubber sheets, velvet and marble papers, wrapping papers etc. Practice handling of all types of craft materials. Watch YouTube tutorial videos of craft making. Focus on making shapes with paper, practice simple origami etc.