Billu=gullu=ulloo..
billu=b.sc main padh raha hai.
gullu = m.a main padh raha hai.
or hamara ulloo : ye post padh raha hai.
'haa haa haa'
hans mat mere saath bhi aise hi huwa hai,
chal ab teri baari hai bana subko ulloo..
jaldi jaldi bana warna ye msg aam ho jaayega.