The Emperor Was pleased with Tulsidas and offered the Hanuman temple with an Islamic crescent Moon finial which adorns the temple spire. It is also claimed that due to crescent moon image about the spire, the temple wasn't ruined because of the Muslim rulers who invaded India at several situations. https://hanumanmandirwellington.org.nz/why-hanuman-temple-in-newtown-is-a-must-visit/