sa: he (Bharata), aśvapatinā by the lord of horses (here, by Aswapati), mātulēna by his maternal uncle, satkārasatkṛta: treated with warm hospitality, putrasnēhēna with filial affection, lālita: was treated, bhrātrā saha along with his brother, tatra there, nyavasat stayed on.
Treated with warm hospitality and fatherly affection by his maternal uncle Aswapati, Bharata stayed on there along with his brother.