Question are are basically asked from Class 11th and 12th so you don't need any special preparation. But if you really want then you can follow these things which i am listing  down:

Jamia Millia Islamia BBS/B.COM/BACA/BA(hons)/BA(Economics) Entrances  (English, Paperback.

You can prepare from Shafique guide.

You can check at Jamia's bookstore situated at Jamia Gate no. 4

All the Best!!!