Which of these hills are part of the Vindhyachal mountain range ?

In Madhya Pradesh, the Narmada river marks the traditional divide between two major hill systems: the Vindhya Range (with its northern plateaus and scarplands) lies to its north, while the Satpura Range (with its constituent hill tracts) lies to its south. Whether a named hill tract counts as part of the Vindhyachal system depends on its documented physiographic classification, not on how similar its name sounds to other regional hills.

1. Bhander (Bhanrer) hills form a plateau tract in the Panna–Damoh belt of Madhya Pradesh, on the northern side of the Narmada — this tract is classified within the Vindhyan scarpland/plateau system.

2. Bijagarh hills lie in Barwani district, on the southern side of the Narmada in the Nimar region — this tract is classified within the Satpura hill system, not the Vindhyan system.

3. Akhrani (Akrani) hills lie along the Madhya Pradesh–Maharashtra border near Nandurbar, within the Satpura hill system that extends toward the Tapi basin — again not part of the Vindhyan system.

4. Asirgarh hills, near Burhanpur, are part of the Satpura hill tract historically associated with the Gawilgarh hills guarding the Tapi valley route — also not part of the Vindhyan system.

• Bijagarh, Akhrani, and Asirgarh are the three options that sit within the Satpura system (south of the Narmada), each in a different part of that system's spread across western and southern Madhya Pradesh.

• Only Bhander sits north of the Narmada, in the Vindhyan plateau belt — matching the range named in the question.

Therefore, Bhander hills are the option that is part of the Vindhyachal mountain range.