The siege on Lanka.

With the given information through Hanuman, Rama proceeded towards Lanka. When he reaches the ocean, he is unable to cross the ocean due to the ocean being in spate. Rama stayed praying to Sagara, the sea god for a few days. But it was of no avail. Then Rama got angry and brewing with anger, got ready to leave an astra at the sea. By then, the sea god Sagara came out of the sea to beg Rama's pardon. Then he gave Rama a way to cross the river. He said any stone will float on the sea if it had Rama's name written on it. Then the vanaras write Rama's name on a number of stones and let them float on the sea. Then, they could easily cross the sea to reach Lanka. After reaching Lanka, Rama sends Angada as a messenger to Ravana asking him for no war and peace. But Ravana wasn't ready and was wanted to fight it out with the Vanara army. Here, at this juncture, due to Vibhishana's differences with Ravana and because he was against the act of kidnapping Sita, Ravana exiled him from Lanka. His mother, Kaikesi, advised him to go and serve Shri Rama, who was at that time assembling an army to conquer Ravana and recover Sita. Lord Rama accepted Vibhishana's service and anointed him the Lord of Lanka after Ravana's death.
In the Lanka War, Vibhishana's knowledge of the secrets of Lanka were invaluable to Shri Rama. Vibhishana freely divulged many secrets that became key to the success of Rama's attack, including revealing the secret path to the temple of Mata Nikumbala, the family deity of the Pulatsya Clan. Because of this, however, Vibhishana is also is known as a traitor.
Now, with Vibhishana by his side, Rama starts the war and pays the Lankan soldiers back in their own coin. Large parts of them are rioted. Here, Ravana wakes Kumbhakarna up from his sleep. But Ravana had been warned by Brahma that if Kumbhakarna had been woken up from sleep, he wouldn't be able to perform to his best strengths. But in his losing methods, he couldn't think of any other way out. The Kumbhakarna when walking out stamped plenty of vanaras to death. Though he was noble enough to oppose his brother, he wasn't strong enough to go to the enemy. He fought hence for his brother. But then a well-aimed arrow at his navel finished him.
Ravana then turned to his son, Indrajit/Meghnad. He was well versed in maya techniques.Indrajit had access to all of the divine weapons like the Brahmastra. Indrajit even bound Rama and Lakshmana under the Nagpash (Serpent spell). The King of eagles Garuda subsequently freed Rama and Lakshmana from the Nagpash. He was fighting Lakshmana one on one, and he injured Lakshmana when he shot at him in an invisible position.
Lakshmana was felled and needed to cared to immediately.Hanuman is sent to fetch the Sanjivani, a powerful life-restoring herb from the Dronagiri mountain in the Himalayas to revive him. Ravana realises that if Lakshmana dies, a distraught Rama would probably give up, and so has his uncle Kalnaimi tempt Hanuman away with luxury. However, Hanuman is tipped off by a crocodile (actually a celestial being under a curse) and kills the Rakshasa. When he is unable to find the specific herb before nightfall, Hanuman again displays his might by lifting the entire Dronagiri mountain and bringing it to the battlefield in Lanka, thus helping others find the herb to revive Lakshmana. An emotional Rama hugs Hanuman, declaring him as dear to him as his own beloved brother Bharat.
Indrajit was unbeatable in war due to the yajna (also spelled yagna) he carried out before any battle, and could only be killed by disrupting this yajna. So Lakshmana planned to disrupt his yajna, and when he did, an enraged Indrajit came and attacked Lakshmana. Here, Lakshmana fought to his best and killed Indrajit.
With this done, Rama thinks Ravana was the last barrier to cross. But then Vibhishana warned him about Mahiravana, king of the Underworld ruled by the rakshasas by Ravana and Demon King Maya. Hanuman creates a fortress with his tail and Vibhishana goes in rounds around the fortress. On one such round, Vibhishana comes back much earlier, and wants to enter the fortress. But again he emerges from another round of his. This shocks Hanuman who realizes the Vibhishana who had gone in was none other than Mahiravana in disguise.
Rama and Lakshmana are captured by the rakshasa, Mahiravana (and his brother Ahiravana) thus, a powerful practitioner of black magic and the dark arts, who holds them captive in his palace in Patalpuri or Patala (the nether world). Searching for them, Hanuman reaches Patala whose gates are guarded by a very young creature called Makardhwaja (known also as Makar-Dhwaja or Magar Dhwaja), part fish and part Vanara.
The story of Makardhwaja's birth is that although Hanuman remained celibate all his life, Makardhwaja was his son; when Hanuman had extinguished his burning tail in the ocean, unknown to him, a drop of his sweat had fallen in as well. Swallowing this sweat droplet, a fish then becomes pregnant. This is discovered when the fish is brought to Mahiravana's kitchen for cooking. Mahiravana raises the child, entrusting him to guard Patalpuri's gates. Hanuman is unaware of this. Although Makardhwaja knows his father is Hanuman, he had never seen him. So, when Hanuman introduces himself to Makardhwaja, he seeks Hanuman's blessings, but decides to fight him as part of his duty as guardian of the gates. Hanuman subdues him and ties him up before entering Patalpuri to rescue Rama and Lakshmana.
Upon entering Patala, Hanuman discovers that to kill Mahiravana, he must simutaneously extinguish five lamps burning in different directions. Hanuman assumes the Panchamukha or five-faced form of Sri Varaha facing north, Sri Narasimha facing south, Sri Garuda facing west, Sri Hayagriva facing the sky and his own facing the east, and blows out the lamps. Thus killing rakshasas, Hanuman rescues Rama and Lakshmana. Afterwards, Rama asks Hanuman to crown Makardhwaja king of Patalpuri.
Hanuman continues to play an indispensable role in the war.
With Mahiravana dead, Ravana himself comes out for battle. Here, the first Ravana is defeated easily and Rama sends him back home and asks him to come to fight the next day. The next day, he comes with a new vengeance, and fights amazingly. Rama first says the Adithya Hrudayam, and after the prayers to the Sun god, he gets back to fight mode. With every head of Ravana he cuts, another head keeps appearing. That's when Vibhishana tells Rama that Ravana's life was in his naval and not his head like normal people. Then Rama hits his naval, and with it has his target killed.
Next, he crowns Vibhishana the king of Lanka.After Rama slays Ravana and wins the war, Sita wants to come before him in the state which over a year's imprisonment had reduced her to, Rama arranges for Sita to be bathed and given beautiful garments before they are re-united. But even as Sita comes before him in great excitement and happiness, Rama does not look at her, staring fixedly at the ground. He tells her that he had fought the war only to avenge the dishonour that Ravana had inflicted on Rama, and now Sita was free to go where she pleased. At this sudden turn of events, all the vanaras, rakshasas, Sugriva, Hanuman and Lakshmana are deeply shocked.[25]
Sita begs Lakshmana to build her a pyre upon which she could end her life, as she could not live without Rama. At this point, Lakshmana is angered at Rama for the first time in his life, but following Rama's nod, he builds a pyre for Sita. At the great shock and sorrow of the watchers, Sita walks into the flames. But to their greater shock and wonder, she is completely unharmed. Instead, she glows radiantly from the centre of the pyre. Immediately Rama runs to Sita and embraces her. He had never doubted her purity for a second, but, as he explains to a dazzled Sita, the people of the world would not have accepted or honoured her as a queen or a woman if she had not passed this Agni pariksha before the eyes of millions, where Agni would destroy the impure and sinful, but not touch the pure and innocent.
With this, Vibhishana gives Rama the pushpaka to fly and reach Ayodhya. On the way, they plan to visit the places where they spent their 14 years. So they reach Rameshwaram first.Upon the advice of Rishis (sages), Rama along with Sita and Lakshmana, installed and worshipped the Sivalinga here to expiate the sin of Brahmahatya (killing of a Brahmin) (Ravana was a Brahmin the great grandson of Brahma). Rama fixed an auspicious time for the installation and sent Anjaneya to Mount Kailas to bring a lingam. As Anjaneya could not return in time, Sita herself made a linga of sand. When Anjaneya returned with a linga from Mount Kailas the rituals had been over. To comfort the disappointed Anjaneya, Rama had Anjaneya’s lingam (Visvalingam) also installed by the side of Ramalinga, and ordained that rituals be performed first to the Visvalingam.
Following this they visited the various other places where they lived, before reaching Ayodhya.
When the war ends, Rama's 14-year exile has almost elapsed. Rama then remembers Bharata's vow to immolate himself if Rama does not return to rule Ayodhya immediately, on completion of the stipulated period. Realising that it would be a little later than the last day of the 14 years when he would reach Ayodhya, Rama is anxious to prevent Bharata from giving up his life. Once again, Hanuman comes to the rescue – he speeds to Ayodhya to inform Bharata that Rama is on his way back.
When Rama re-enters Ayodhya, the whole public in the city were enthralled. All of them made Rama the king, and of course the queen was Sita. The public were overjoyed with the prospect of their beloved Rama ruling them.
All of the vanaras, Sugriva, Vibhishana, Hanuman, and the others were all there.
Shortly after he is crowned Emperor upon his return to Ayodhya, Rama decides to ceremoniously reward all his well-wishers. At a grand ceremony in his court, all his friends and allies take turns being honoured at the throne. Hanuman too goes up, but without desiring a reward. Seeing Hanuman come up to him, an emotionally overwhelmed Rama embraces him warmly, declaring that he could never adequately honour or repay Hanuman for the help and services he received from the noble Vanara. Sita, however, insists that Hanuman deserved honour more than anyone else, and asks him to seek a gift. Upon Hanuman's request, Sita gives him a necklace of precious stones adorning her neck. When he receives it, Hanuman immediately takes it apart, and peers into each stone. Taken aback, many of those present demand to know why he was destroying the precious gift. Hanuman answers that he was looking into the stones to make sure that Rama and Sita are in them, because if they are not, the necklace is of no value to him. At this, a few mock Hanuman, saying his reverence and love for Rama and Sita could not possibly be as deep as he was portraying. In response, Hanuman tears his chest open, and everyone is stunned to see Rama and Sita literally in his heart.
After the victory of Rama over Ravana, Hanuman went to the Himalayas to continue his worship of the Lord. There he scripted a version of the Ramayana on the Himalayan mountains using his nails, recording every detail of Rama's deeds. When Maharishi Valmiki visited him to show him his own version of the Ramayana, he also saw Lord Hanuman's version and became very disappointed.
When Hanuman asked him the cause of his sorrow, he said that his version, which he had created very laboriously was no match for the splendour of Hanuman's, and would therefore, go ignored. At this, Hanuman took those rocks on one shoulder and Valmiki on the other, and went to the sea. There he threw his own version into the sea, as an offering to Rama. This version, called the Hanumad Ramayana, has been unavailable since then.
With every day, people started loving the rule. Rama's rule got the tag Rama Rajya, which was since referred to a perfect rule of a kingdom. The people loved the life under Rama. Sita got to live with her husband for a long time, happily. It was an ideal life. It looked like a happy ending, happily ever after, but was it??

Ramayan, abhi bhi baaki hai mere bhai!!