<P> Lava and Kusha chanted the Ramayana in the presence of Rama and a vast audience . When Lava and Kusha recited about Sita's exile, Rama became grief - stricken and Valmiki produced Sita . Sita, struck with embarrassment and grief, called upon the earth, her mother, to receive her and as the ground opened, she vanished into it . Rama then learnt that Lava and Kusha were his children . </P> <P> In some versions, Lava and Kusha capture the horse of the sacrifice and defeat Rama's brothers and their army and when Rama came to fight with them . Sita intervened and unites father and sons . </P> <P> Lava and Kusha became rulers after their father Rama and founded the cities of Lavapuri (currently identified as modern day "Lahore") and kusha respectively . </P> <P> Kushavati was a city in Kosala Kingdom as related in the epic Ramayana . The king of Kosala, Rama, installed his son Lava at Sravasti and Kusha at Kushavati . </P>

Who is the nana of luv kush in ramayana