The correct options are
B Tulgama meant dividing the whole army into the Left, the Right and the Centre.
D The side divisions were further subdivided into Forward and Rear divisions.
The new war tactics introduced by Babur were the Tulgama and the Araba. Tulgama meant dividing the whole army into various units, viz. the Left, the Right and the Centre. The Left and Right divisions were further subdivided into Forward and Rear divisions.