Consider the following: Patkai hills Manipur hills Mizo hills Naga hills Which among the above make the Purvanchal Range?

Q. Consider the following: Patkai hills Manipur hills Mizo hills Naga hills Which among the above make the Purvanchal Range?
Answer: 1, 2 3, & 4
Notes: The mentioned four hills viz. . Patkai hills, Manipur hills, Mizo hills and Naga hills make the Purvanchal Range which is famous for Sandstone.