It's mysterious if this construction is leaning by structure or for one more reason. Although the edifice leans, the pinnacle of the temple is perpendicular to the bottom. In this temple Lord Vishnu is worshiped as Lord Alarnath. The deity has 4 arms, He retains chakra inHIS upper right hand, https://hanumanmandiradelaide.com.au/establishing-neem-karoli-baba-statue-at-hanuman-temple-south-australia/