How do i use a config.txt to recursively pass a set of variables to a shell script

eg my config.txt looks like this :

[set_1]
path=c://dataset/set1
v1= a.bin
v2= b.bin

[set_2]
path=c://dataset/set2
v1= xy.bin
v2= abc.bin

[set_3]
..................

and so on .

and my testscript :

#!/bin/bash
.$1

echo $path $v1 $v2


Right now I am able to parse first set of variables . How do i move on to the subsequent set_2 , set_3 ...........


Thanks in advance
pradsh