Rekha means line and It is just a tall straight setting up which has a condition of the sugar loaf. It covers the garbhagriha. Two this sort of temples that endure are; temple at Udaygiri which can be over the outskirts of Vidisha (it is part of a large Hindu https://javatourbylocals.com/Blog/Discover-the-Rich-History-of-Borobudur-Temple-A-Journey-Through-Time/