Nandi Dev is Shiv-Sarupya, the one who looks like Shiva. But Sri Nandi rejected His Shiva sarupya out of His Bhakti for His Aaradhya. He wanted none to be like Shiva. Hence, he assumed ape face. Here He's Naramukha.
You may not be where you want to be. But that is where you are meant to be. The only reason why you are here.
๐ถ..๐ฅ๐ช๐ฒ๐ด๐ช๐ผ๐ฑ ๐ฅ๐ช๐ป๐ช๐ฟ๐ฎ๐ฎ๐ท๐ช..๐ถ