● ICSE Class 9 textbook Page 150 : Buland Darwaza constructed in red and yellow standstones with white marble inlay in the span of the arches. Khankah too contains white marbles. So, statement #1 is right. ● Second statement is wrong. "Rumi Darwaza, Bara Imambara, Chhatar Manzil .... monuments in the Lucknow city are fragile in terms of structural strength (because) The common material used for raising most of the monuments in Lucknow was brick and plaster. The two ingredients used are unique in their own sense but their strength when compared with rock solid stones is much less." says Times of lndia