In the Ramayana, when Ravana abducted Sita and took her to Lanka, Lord Rama resolved to bring his wife back. To achieve this, he sought the help of Sugriva, the king of the monkeys, and his army. Lord Rama, along with Hanuman and other monkeys, set out towards Lanka and engaged in battle with Ravana.
In this great battle, fierce fighting ensued between the armies of Lord Rama and Ravana. Throughout the many days of the war, Lord Rama showcased his extraordinary warrior skills. Eventually, a direct confrontation occurred between Lord Rama and Ravana. Ravana was very powerful and possessed many divine weapons.
Ravana had ten heads, and whenever Lord Rama cut off one of his heads, it would grow back. Lord Rama realized that to kill Ravana, he needed to use the Brahmastra, which he had received from Sage Agastya.
Lord Rama employed the Brahmastra and directed it at Ravana's navel, where the secret of his immortality was hidden. The power of the Brahmastra destroyed Ravana, causing him to fall lifeless. Thus, Lord Rama killed Ravana, liberated Sita, and freed Lanka from his tyranny.
This story of Ravana's slaying teaches us that no matter how powerful evil may be, it is destined to be defeated by truth and righteousness. Lord Rama, with his bravery, patience, and devotion, demonstrated that the path of truth and justice is the supreme path.