The Emperor Was pleased with Tulsidas and offered the Hanuman temple by having an Islamic crescent Moon finial which adorns the temple spire. It is usually claimed that because of the crescent moon image around the spire, the temple was not destroyed from the Muslim rulers who invaded India at https://hanumanmandirsydney.com.au/can-i-book-a-special-puja-or-ceremony-at-hanuman-mandir-sydney/