Multiple choice general knowledge First true dome Char minar Golgumbaz Alai Darwaza Taj mahal Reveal answer Fill a bubble to check yourself C Correct answer Explanation Alai Darwaza, built in 1311 by Alauddin Khilji, is considered the first true dome in Indian architecture. It introduced proper Islamic dome construction techniques to India, unlike Char Minar (1591) or Taj Mahal (1632-1653).