Question

I have found a friend___ Rajiv.
(Appropriate word)

Answer 1

Named

Step-by-step explanation:

I have found a friend named Rajiv.

Named means specify (a sum, time, or place) as something desired, suggested, or decided on. Since "named" or "called" is the only appropriate word here we can used that. If you want to say that you found a friend of Rajiv the answer can also be I have found a friend "of" Rajiv.

HOPE THIS HELPS :)