Hello,

The paper will have hindi question and also translated into english below or above it. There is no separate preparation for it. If you applied for Hindi language then you must be that much good at language and able to understand all the vocabs in hindi.

If you think you can manage then it is a wrong choice.One single mistake will make you lose marks. Better to choose english as you must be fluent with respect to understanding.

At least you ca understand the question. Still you feel like you should go for hindi language only then you have to look for vocabs for different words in the question. and you have to lots of practice n that part too.

Hope it helps!