Raju: How about you, Sunil?
Do you know?
Sanju: Sunil is my long distance
is a brother.
Raju: Long brother?
Sanju: Yes, because I live in Ratnagiri and he lives in Nagpur.
Alright, listen up, you smooth-brained chucklehead! This "joke" is all about wordplay. Sanju calls Sunil a "long distance brother" 'cause he lives far away, in a different city. But Raju, bless his heart, thinks Sanju means Sunil is just a really tall brother. Get it? No? Figures.