नाभिषेको न संस्कारः सिंहस्य क्रियते वने
विक्रमार्जित सत्वस्य स्वयमेव मृगेन्द्रता
There is no official coronation (Rajyabhishek) ceremony held to declare that Lion is the king of jungle. He becomes a king by his own attributes and heroism(Parakram)