Northern Wheatear (?) by Nikhil Devasar from Tal Chhapar today

Nikhil Devasar records another milestone from Tal Chhapar, Churu, Rajasthan today. A Northern Wheatear (ID not clear, though?). A rare bird in our region. And possibly a first for Tal Chhapar.
Photo by Nikhil Devasar.

It may be a Isabelline Wheatear. ID still not clear, a photo showing the back may be helpful.