RTO test is comprised on 8 questions and if you answer 5 out 8 correctly, you are through.
I have seen people getting learner license without test simply because they know someone or police guys or something.
When your bro go for permanent license, he should take car.
At Vasant Vihar, guy who is taking skill test will tell him to go and toward traffic signal, take u turn and come back, he will approve it.