Uttara Kanda explains the story of ram banishing Sita from Ayodhya , birth of their sons. Uttara Kanda also explains the story of Luv Kush training by Rishi Valmiki.
RAMAYAN – BIRTH OF LUV-KUSH
After being crowned king, many years passed. During Ram’s period of rule, an intemperate washerman, while berating his wayward wife, declared that “he is not Ram who would take his wife back after she had lived in the house of another man”. This statement was reported to Ram, who knew that the accusation of Sita was baseless. Ram yielded to public opinion and thus Sita was forced to the forest into exile for a second time, even as she was pregnant where the sage Valmiki provided shelter in his ashram (hermitage), located in a forest on the banks of the River Tamsa. Sita delivered twin sons named Luv and Kush. In the hermitage,
(There is another story that Site delivered one son Luv. Once, Sita was going for a bath to the nearby river (tamsa), she requested muni Valmiki to look after her son Luv, and muni nodded his head in agreement while he was busy writing. After going some steps she noticed that muni was continuously engrossed in writing, so she took Luv with herself. After some time when muni looked for the child who was supposed to be somewhere around, he could not find Luv. Muni was not aware of the fact that Sita herself had taken Luv with her. Muni was worried what he would say when Sita returned and asked for her child. So he created a child boy from nearby Kush (a grass used for making mats and roofs of kutiya’s in ancient India) and gave life to it. When Sita returned, Muni was surprised to see that Luv was with her, so he asked Sita to take care of both children as her own children. Since Valmiki muni used Kusha to make the child, the child was given the name Kusha. )
Valmiki formally started training Luv and Kush when they were around 5 years of age. He trained them in archery and they were able to release arrows at the speed of sound and brought up in ignorance of their identity. . He also taught them about divine & celestial warfare. He made them masters in archery so that no one on this earth could defeat them in war.
RAMAYAN ASHWAMEDHA YAGNA
Ram performed Ashwamedha Yagna to enlarge his empire, (The Ashwamedha Yagna was a ritual where an emperor sent out a horse accompanied by a huge army to various neighboring kingdom, the local king could allow the horse to wander – signalling that his kingdom may be annexed, or tie up the horse – indicating that he was ready to battle the emperor’s army to prevent his kingdom from being annexed.) The horse wandered into the forest where Ram’s twin sons lived and they tied the horse, not knowing its significance. Ram sent Hanuman to retrieve the horse. Hanuman, seeing Luv and Kush recognised that they were the son’s of Ram. He let them capture him and tie him up. There Hanuman started meditating on the name Ram. Worried Ram sent his brothers to look for the horse. As they saw Hanuman tied up and two boys guarding him, they thought that the two boys had stolen the horse. So Rams’ brothers started attacking Luv and Kush. Luv and Kush defeated them all, knocking them unconscious. Ram heard about this and correctly guessed that two kids at a hermitage who can defeat an entire army could be no ordinary kids. Eventually, Ram himself came to confront with them in battle not knowing they were his children. and introduced himself and met his sons for the first time and invited them to Ayodhya to perform the Yagya.
Valmiki composed the Ramayana (having twenty four thousand verses) and taught to Luv and Kush to sing it. Later, Ram held a ceremony during Ashwamedha yagna, which the Rishi Valmiki, with Luv and Kush, attended. Luv and Kush sang the Ramayan in the presence of Ram and his vast audience. Ram summoned all his brothers and ministers to listen to the ballad. Ram himself was put to the turmoil, for the ballad sung by these youngsters narrated the legend of Sita. When Luv and Kush recited about Sita’s exile, Ram became grievous, and Valmiki produced Sita. Ram then learned that Luv and Kush are his children. Once Sita witnessed the acceptance of her children by Ram, Sita sought final refuge in the arms of her mother Bhumi, to receive her and as the ground opened, she vanished into it.
Valmiki Ramayana is divided in following Kanda’s :
• Bala Kanda – Childhood – Birth and training of the Princes and marriage of the Princes
• Ayodhya Kanda – Ayodhya – Preparations for Ram’s coronation as a prince, coronation and his exile into the forest. Raja Dasharath died due to grief.
• Aranya Kanda –Forest – Forest life of Ram, visit to the Rishis, Ram received celestial weapons from Rishi Agastya. Kidnapping of Sita by Ravan.
• Kishkindha Kanda –Kishkindha – Meeting of Hanuman with Ram, Sugriv killed Bali with the help of Ram. Sugriv was crowned as the king of Kishkindha search of Sita.
• Sundara Kanda – Auspiciousness – Hanuman’s journey to Lanka and his meeting with Sita, sets fire to Lanka.
• Yuddha Kanda – War – Battle between Ram and Ravan. Both used Astras charged with Mantra, Sita was rescued from Ravan. Sita’s honour was tested in the fire
• Uttara Kanda –Afterword – Ram’s life after returning to Ayodhya and Sita’s exile, the birth of Luv and Kusha to Sita, their coronation to the throne of Ayodhya,.