The Grand Ram Temple will not require any repairs for at least 1,000 years and even a 6.5 magnitude earthquake won't be able to shake its foundation. Steel and ordinary cement have not been used in the temple's construction. The temple's foundation is also 12m deep. The soil used for refilling the foundation can get converted into stone in 28 days, and a total of 47 layers were laid in the foundation, according to report- https://m.timesofindia.com/india/why-new-ram-temple-in-ayodhya-wouldnt-need-repairs-before-a-1000-years/articleshow/105866964.cms