Questions & Answers about जो मेहमान यहाँ है, वह मेरा दोस्त है।
This is a very common Hindi relative-correlative structure.
- जो = who / which / that
- वह = that one / he / she / it
So जो मेहमान यहाँ है, वह मेरा दोस्त है literally works like:
- The guest who is here, that one is my friend
- or more naturally in English: The guest who is here is my friend
Hindi often uses this two-part pattern where English would usually use just one relative clause.
That is just how this Hindi pattern normally works. With जो, Hindi often pairs a matching word like वह in the main clause.
So:
- जो ... वह ... = who/whatever ... that/he/she ...
In English, repeating the pronoun often sounds unnecessary, but in Hindi it is natural and standard.
In some contexts, especially in conversation, Hindi may avoid the full pair or use a different structure, but in a sentence like this, जो ... वह ... is perfectly normal.