help i guess my mob micromax doodle 3 is unrootable... i guess

Hey guys.
Need help... I'm new here
I can't root my phone idk why...
I tried framaroot and many allied apps to root my phone but none of em were successful
My mob is micromax doodle 3
512 mbits ram
1.3ghz cpu
I even tried rooting with pc...but that didn't help well..please help..
I can provide you all info if in need
Ive added info of cpu-z with it
Idk may be it helps... :(
Cpu arm cortex a7 X 2
Revision r0p3
Model micromax doodle 3 A102
Hardware mt6572
Android 4.2.2