Question

which was the first structure in India to use the double dome

Answer 1

"The double dome is one of the classic features of the Indo-islamic architecture which flourished during the 16th and 17th centuries.

There were a number of initial attempts at incorporating a double dome such as in the tomb of sikander Lodi.

The first double dome however, was seen in the architecture of Tomb of Humayun.

"

Answer 2

Answer:

The tomb of Itmud-ud-Davla commissioned by Nur jahan is the fist building tomado entirely in white marble with pietro dural