Ina certain code language, 6219 means 'Sachin is a cricketer' and 2646 means 'He played from Mumbai'. Which of the following is the code for 'Mumbai is very famous'?

6246

The logic followed here is;

(Words is coded as the total letter no. of letters in the word)

So,

1) 6219 means 'Sachin is a cricketer' 

 Sachin -> 6 letters

is -> 2 letters

a -> 1 letter

cricketer -> 9 letters

And,

2) 2646 means 'He played from Mumbai'

He -> 2 letters

played -> 6 letters

from -> 4 letters

Mumbai -> 6 letters

Similarly,

 'Mumbai is very famous' means  ...?

Mumbai -> 6 

is -> 2

very -> 4

famous -> 6

Thus, 6246 is correct.