In 1922, R.D. Banerji, an archeologist, conducted excavations at Harappa and Mohenjo - Daro. His investigations provided evidence that these two ancient Indus Vally cities: a were ruled by a single powerful dynasty. b were based on principles of social equality. c had experienced surprising industrial development. d possessed a well - planned urban design.
it was reliably established that the settlement was constructed according to the principle of a rectangular grid, as a pile-up of equal houses with rectangular walls, and that the buildings had multiple floors and had at that time a completely unique sewer system, water supply systems, heating devices, etc.
On the other hand, no traces of the architecture of secular or spiritual rulers were found throughout the city.
Nothing of this kind could be confirmed by sufficiently substantiated indications and facts.
