Basis the information given in the question the following table can be made

Now since every person has a particular relationship with the other 6 people in the town
the sum of friends + acquaintances + strangers must be 6, thus 

Now B can only have 1 friend who is also an acquaintance of A, basis the above table B can only be
friends with C or D. B can only be friends with D as C cannot be an acquaintance of A as C is a
stranger to A. Thus F & G will be strangers to A & B and vice-versa. Also, G will have D, E, F as
acquaintances and vice-versa. 

D needs to have 2 strangers who will be C & F and vice-versa

Also C will be a stranger to E and vice-versa, thus F will be an acquaintance to C and vice-versa
4 people are either a friend or a friend-of-a-friend of Ezhil.