Very funny hindi joke

Babli - Teacher Teacher! 'Bus' Male
hai ya Female ?
.
(Teacher thinks 'such a cute question)
Suddenly another kid (Bunty) replied-
.
.
Teacher, Teacher It's Female
.
Babli-Why?
.
Bunty-Kyoki Sab Log Uspe Chadte
Hain, Idiot.
.
Teacher got tensed with answer
whereas
.
Babli In Doubt again-Agar Bus Female
Hai Aur Sab Uspe Chadte Hain To
Uske Bacche- Kyo nahi hote ?
.
Teacher more tensed...
.
.
Bunty again with answer-Kyoki Sab Us
Par Peeche Se Chadte Hai duffer.
.
Teacher sharm se pani pani.
.
But Babli still in doubt-Maana Sabhi
Peeche Se Chadte Hain, par Driver
Aur Conductor To Aagay Se Chadte
Hain. Phir Bachche -Kyon Nahin Hote?
.
Teacher Ki Saanse band.
.
Bunty's final reply-Kyon Ki Woh Dono
Topi pehanke Chadte Hain.
.
.
Teacher Behosh!