Section 1 is about the English.

You need to have good writing and grammar skills. You can refer some top books like Wren and Martin for the same.

Section 2 is General Knowledge. You can use some top GK books for this maybe the Navneet Publications. At the same time you will face questions on Law part- basics of rajya sabha, Lok sabha , president, prime minister ,etc powers and limitation . Questions on constitution and also the Basic current affairs - recent appointments, etc.

Section 3 is about the Maths and LR.

LR is usually not that tough.

Maths or quant includes

Speed time distance , work And worker , mensuration , percentage , ratio and proportion. Some Problem sums

Best wishes. Thank you.